Announcements (hit the Refresh button on your browser to make sure that you are seeing the latest version of this page, and every other page on this website)


Dec 5, 2016
The Current Points page been updated with your scores for all of the quizzes, AND, all midterms after all regrades, Click HERE. Please check to make sure there are no errors. Regraded midterm scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update those too, take the Current Points page as the definitive list of points.

Please take a look at the scores and check for errors. Any errors must be brought to my attention by the end of the day Wednesday. Wednesday is also the deadline for completing the end of semester survey. To access the END of semester survey, click HERE.
The end of semester survey is NOT the standard end of semester class evaluation nor is it Quiz #14. After midnight on Wednesday the survey closes and I will not be able to open it again.

Wednesday is also the deadline for completing the homework problems. You must have attempted 700 in order to earn all of the homework problems.

The only additions to the points on the current points page after Wednesday comes from the final exam and the survey and homework points.

Once the final exams have been graded I will personally regrade the exams of every student who is within 30 points of one of the grades cutoffs, there will be no student requested regrades for the final, and no further regrade requests will be accepted for any earlier exam. I hope to post the final points and grades this coming weekend. Once I have posted these final grades they cannot be changed. If you are close to a grade cutoff and didn't make the higher grade it will not have escaped my attention, I will just not have been able to find the points on your final to get you there. Please don't ask me to reconsider your grade, I do not award grades, you earn them based on the points you received, I simply make sure that you haven't missed any points by regrading your final exam. So please don't send me emails asking me to reconsider a final grade assignment.

You will be able to pick up your final (and any other) exam if you like from my office during the winter break. I will not have office hours and I can't guarantee when I will be in my office but you are welcome to try at any time if you only want to pick up your test, however, I won't have time to discuss your test with you, I have a very busy break ahead of me. Thanks for your consideration of these "rules".

Dec 3, 2016
Todays review session has now been posted on the recorded lectures page.  More...
Dec 2, 2016
Todays review session has now been posted on the recorded lectures page.  More...
Dec 1, 2016
There will be TWO pre-test review sessions, the first will be Friday, 10AM - 11:30AM in PEBE-219 (which is apparently between the Law College and the Bookstore, I have never been there either!). The second will be Saturday 3PM - 5PM in PS H-152. Both will cover different material and both will be recorded. You will not be able to watch "live" since I can only do that from PS H-132.
Nov 30, 2016
The assignments of Sayetzeff and Hofmann for the last 2 reactions covered in lecture today were incorrect and reversed, apologies:

Nov 30, 2016
The projector in LS A-191 failed during lecture today, and so I had to use the whiteboard in class and re-record todays lecture in my office. As often happens when I do a lecture in my office I recorded it in a lot less time that I usually take in the classroom, especially because working on the whiteboard is slow. This is why the recorded lecture is somewhat short this time.  More...
Nov 30, 2016
Still struggling with R/S? Some of the homework problems have video explanations showing how to use a model to solve these problems accurately, specifically:
Identification > Credit Questions > Question #1
Identification > Credit Questions > Question #15

Don't wait until it is too late like Tyler almost did a couple of years ago


You can also see how to solve these problems by clicking HERE

Nov 29, 2016
End of Semester Survey: At the beginning of the semester you were invited to participate in a chemical education research survey. To participate you need to complete a survey BOTH at the start of the semester and also at the end of the semester. You are now invited to complete the end of semester survey.

If you participate in this project by completing both surveys you will receive 1% of the available class points as extra credit towards your grade.

There is a lot going on at the end of that semester and it is important that you don't lose track of the various evaluations, surveys etc. Further down this page you are invited to complete the usual end of semester evaluation that is required for all classes. This is NOT our education survey, you do not receive any credit for completing that class evaluation. The last quiz, #14, is also a survey quiz, but that is also not our end of semester survey, you do not receive any extra credit for completing quiz #14, just the usual quiz credit. To get the extra credit you MUST complete OUR survey, the link is given below, AND you must have completed the survey at the start of the semester. Please don't ask if you can complete only this one of you didn't do the start of semester one, and please don't ask if you can do the start of semester one now, and please don't ask me to let you know if you completed the start of semester one or not, I don't have any easy way of checking that.

To access the END of semester survey, click HERE. YOU MUST COMPLETE THIS END OF SEMESTER SURVEY by the end of the day WEDNESDAY Dec 7th, i.e. just over 1 week from now, which is the same deadline for completing the online homework problems. Once you start the survey you should finish it! If you start, then leave it for a while, and then come back then the system will time you out and you will have to start all over again. You should have plenty of time to finish it once you start, you do not need to rush, but don't start and then leave unfinished and then expect to be able to come back and finish it an hour or two later, it will have timed out due to inactivity.

We thank you for helping us to learn how to teach better.

Nov 28, 2016
The Current Points page been updated with your scores for the first 13 quizzes, AND, the first midterm and second and third midterms exams after all regrades, Click HERE. Please check to make sure there are no errors.

The regraded midterm #1 and midterm #2 and midterm #3 scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update those too, take the Current Points page as the definitive list of points.

Nov 28, 2016
To see the answer key to Quiz #13, Click HERE.
To see the new Quiz #14, Click HERE.
Quiz #14 is a SURVEY QUIZ! The deadline for submitting Quiz #14 is Sunday, Dec 4th, 6PM.

Nov 28, 2016
My version of the Halides notes have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Nov 28, 2016
The mechanisms for the E1 versus E2 reactions covered at the end of lecture today were a little rushed, in case anybody missed them they are reproduced here:

Nov 27, 2016
In place of a review session this past weekend, a number of review videos have been posted on the Recorded Lectures page that you may find useful when preparing for the final exam. It is not possible to review everything in review sessions for the final, and so I will focus on what we have covered since the 3rd midterm for final exam reviews. Also, different students will need to review different concepts from earlier in the semester. You will see a main review video that reviews fundamental concepts, such as hybridization, BDE, MOs, acidity etc, and others on more specific topics.

As suggested below, focus mainly on the material since the 3rd midterm, and look at the old and the practice exams to find what you might additionally need to review from earlier in the semester.  More...

Nov 23, 2016
It used to be that my final exam was approx. 1 week after my last lecture, and then the final exam schedule changed a couple of years ago and now the final is the Monday after the last lecture. Curiously, the class didn't really do any worse on the final exam after the switch, which I think just reflects that students just switched around their study schedule. Nevertheless, the final does come up very quickly, and I think that you need to be preparing for it now, especially since we still have some material to cover in the last week of classes (we will finish everything we need to cover this semester, just!).

And so PLEASE try to find some time to get started on the homework for the final over the break. Yes, I know that it is Thanksgiving and I expect you all to take at least some time off, but if you can get started NOW you will enjoy a much less stressful weekend before the final. Take a look at the homework site, we have updated the "target" problem numbers again and there is a new meme.

Material for the FINAL EXAM: The final will be roughly 50% material since the 3rd midterm and roughly 50% "greatest hits" from earlier in the semester, look at the old final exams and practice exams for guidance.

To study for the final I suggest that you focus primarily on the material since the 3rd midterm, radical reactions, chirality and substitution and elimination reactions, since roughly 50% of the points will be on that material. Then I suggest going over the old final and practice exams and use those to guide you as to what material from earlier in the semester you need to work further on. You will find that just by using it you will have now learned a lot of what seemed difficult earlier in the semester!

If you have questions I suggest that you try asking them on the class Facebook group page, I like to answer questions there because then many people will see the answer instead of just one.  More...

Nov 23, 2016
In the very last structure I drew in lecture today, the product of the SN1 reaction of the dibromide, I put the double bond in the wrong place in the ring, apologies. The structure should have been as shown below:

Nov 23, 2016
Still struggling with assigning R and S? Take a look at the video explanations for the following homework problems:
Identification > Credit Questions > Question #1 - shows how to use a model
Identification > Credit Questions > Question #7 - shows how to use a model
Identification > Credit Questions > Question #8 - shows how to use a model
Identification > Credit Questions > Question #11 - shows how to use a model.  More...

Nov 20, 2016
My version of the Chirality notes have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Nov 20, 2016
Each semester you are asked to evaluate your courses in order to ensure a quality experience for all our students and to provide feedback to your instructor. Evaluation of all courses offered through the School of Molecular Sciences is now online.

To complete an evaluation proceed as follows:
1. Copy and paste (DO NOT CLICK) the following URL into your browser and press ENTER: https://chem-webtools.asu.edu/webtools/ClassEval/Evalhome.html
2. Click the “Click Here to Start”. The first thing you see should be a login screen. Login with the same username and password you use to access myASU.
3. When you log in, a list of evaluations to complete and their status (completed or otherwise) will be shown. If you are enrolled in multiple sections (such as lab and recitation), be sure to complete an evaluation for each. If one of these sections has multiple Instructors, you will be asked to evaluate both.
4. Click on the " Take Eval" icon beside a course name to open the evaluation form and respond to the questions.
5. Click on the "Submit" button once you have answered the questions and you will be returned to the initial screen, where you can complete any additional evaluations. The status for the evaluation of that course should change to "Completed".
6. If you have successfully completed the evaluation, the status for the evaluation of each course should change to "Completed". You can verify this by logging in to the evaluation website to check.

Your responses are anonymous. Login is required to verify that you are a student in the class; however, your answers will not be associated with your student ID. In addition, your instructor will not receive the evaluation report until after grades have been posted.

The evaluation close date is Thursday 12/1/2016 at 5:00 PM! Thanks!

Nov 20, 2016
Todays review session has now been posted on the recorded lectures page.  More...
Nov 19, 2016
Office hours today, Saturday Nov 19th, will take the form of a review session, 3:00 - 4:00 PM. It will be held in PS H-132. Sometimes the doors to the PS building are locked on the weekends, I will try to remember to open the doors at the end of H-wing. The review session will be recorded in the same way as the lectures, and posted online later in the day.

You can also watch the review session "live" over the internet using Adobe Connect, click HERE. Login to the Connect site as a guest.

The subject of the review session will be Chirality in the context of reactions.

Nov 18, 2016
Don't forget that your model kit can be helpful when solving chirality problems, and so don't wait until it is too late like Tyler almost did a couple of years ago



(and don't let your room get a messy as his!)

If you are not sure how to use a model kit for this, click HERE

Nov 18, 2016
How many points do you need on the final? A handy guide was posted on the class facebook group, Click HERE.
Nov 18, 2016
To see the new Quiz #13, Click HERE.
The deadline for submitting Quiz #13 is Sunday, Nov 20th, 6PM.

Nov 16, 2016
The results for midterm #3 are now posted on the Exam Scores page.  More...
Nov 12, 2016
One more time I have to apologize, there have been several delays related to grading the tests, and grading will now not be completed until the end of the day WEDNESDAY. This means that The midterms will not be returned in class on Wednesday, it will now have to be Friday of this week. Apologies for the delay, this is unusual for this class.
Nov 14 2016
My version of the Radicals notes have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Nov 14, 2016
Today in class we started to discuss the concept of chirality, and we introduced the idea of assigning the absolute configuration at an asymmetric or chiral carbon atom. This is the equivalent of assigning cis- or trans- to the stereochemistry at C=C double bonds. Once the rules are "learned" there still remains the issue of learning how to orient the molecule and "read" the configuration as R- or S-. This isn't difficult to do once you have learned how to do it (and, of course, after you have practiced it), but learning how to do it can be a bit tricky at first. Therefore, I have a couple of videos showing you a couple of ways to do this. There are different ways of assigning R/S this, different students will settle on their own favorite ways. The safest way is to use a molecular model, but it is quicker if you can find a way to do it that avoids building a model.
To see one way to do this using your "finger", Click HERE.
To see how to solve the same problem using a molecular model, Click HERE.

Nov 14, 2016
To see the answer key to Quiz #12, Click HERE.

Nov 12, 2016
The midterms will not be graded until the end of the day MONDAY, and so they will not be returned in class on Monday, apologies for the delay.
Nov 12, 2016
There will be NO Office hours/review session today, I am out of town for the weekend, there isn't much to review anyway.
Nov 10, 2016
POINTS CLARIFICATION
There are 14 quizzes this semester. After #14, the lowest 4 quiz scores will be dropped. The points for the remaining 10 quizzes (for which there are 100 points maximum) will then be normalized to a maximum of 50 points, and these normalized points will then be the quiz points that contribute to your final point total for the semester.

The deadline for "completing" the homework credit questions will be 11:59PM, Wednesday December 7th, i.e. 2 days AFTER the final exam. Remember, to "complete" a question you only have to have attempted it, it does not matter if you get it correct or incorrect. The number of questions you have attempted is given at the top of the questions page as a number out of 1054, which is the total number of credit questions for this semester (until the final exam questions are added, when it will increase again, although I am not sure by how many just yet). To receive all of the 50 homework points you will have to have attempted 700 of the credit questions. Attempted credit questions less than 700 will earn points proportionally, i.e. 350 earns 25 homework points (50 * 325/650), 600 questions attempted earns 43 homework points (50 * 600/700), etc.

Nov 8, 2016
The results of the 3rd midterm will be posted on the class website probably late Sunday evening. As posted below, the Current Points page has been updated, please check to make sure that there are no errors. The Problem Goals have been updated on the homework site, please visit the homework site to see the meme of the week if nothing else! This weeks quiz includes a lot of prior material, specifically spectroscopy, because we haven't covered much new material since the last one, spectroscopy WILL be on the final exam.
Nov 8, 2016
To see the new Quiz #12, Click HERE.
The deadline for submitting Quiz #12 is Sunday, Nov 13th, 6PM.

Nov 8, 2016
The Current Points page been updated with your scores for the first 11 quizzes, AND, the first midterm and second midterms exams after all regrades, Click HERE. Please check to make sure there are no errors.

The regraded midterm #1 and midterm #2 scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update those too, take the Current Points page as the definitive list of points.

Nov 6, 2016
To see the answer key to Quiz #11, Click HERE.

Nov 5, 2016
To see a video that illustrates backside attack in the context of the reaction between an alkene and Br2, click HERE.
Nov 5, 2016
Todays review session has now been posted on the recorded lectures page.

In teh review we talked about learning the alkene reactions. At first they seem intimidating, but this is what I suggest you do. Do as many of the homework problems as you can with the list of reactions that is at the end of the alkenes section open in front of you. use the list to help you to solve the problems. This way you will get through many more problems than you would trying to solve them all on your own. The more problems you get through the easier it will become and regular patterns will soon emerge. Really, they aren;t as bad as they look, once you get going it gets easier quicker than you think.

Also, don't try to memorize the reagents/conditions. Solve as many problems as you can and in doing so you will learn most of them. There may be some left over that you still don't know on the Sunday evening before the test, then go and memorize the remaining ones then. But by working many problems ahead of time you will find that you have to memorize very little, and memorizing at that stage is much better than trying to memorize before you do a lot of problems since you will then have a context. If you try to memorize first then you will have no context, which makes it much harder.  More...

Nov 5, 2016
I hope that by now you realize that mechanisms are the key to understanding chemical reactions, how they go and whether they may actually go or not. Using mechanisms you will learn to predict the products of reactions you have never seem before. Well, maybe not quite the last part yet, but by the end of the 2-semester sequence that is where you will be. And so mechanisms are important. Use the old exams and the practice exams on the homework site as a guide to the kind of mechanism problem you might encounter on an exam in this class, and which mechanisms are are expected to be able to do.
Nov 4, 2016
Todays review session has now been posted on the recorded lectures page. Solving additional spectrum problems can be found HERE.  More...
Nov 4, 2016
There will be no mass spectroscopy on midterm #3, if I give you a spectrum problem to solve you will be provided with the molecular formula.
Nov 2, 2016
There will be TWO pre-test review sessions. The first will be Friday, 11AM - Noon, in SCOB-228. The second will be Saturday 3PM - 5PM in LS A-191. Both will cover different material and both will be recorded. You will not be able to watch "live" since I can only do that from PS H-132.
Nov 2 2016
My version of the Alkenes notes have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Nov 2, 2016
I just loaded some practice exams onto the homework site for midterm #3, there is a now new category of problems with the Heading Practice Exams 3. There are 3 practice exams there and in each the problems are exam type and are mixed together exam style.  More...
Nov 2, 2016
The material for midterm #3 will include ALL of the Alkenes section of the notes. We will finish alkenes on Friday. I don't usually include material from a Friday lecture on a Monday exam, but we got slightly behind and we need to catch up.

As last time, DO NOT SIT ON THE FRONT ROW IN EITHER EXAM ROOM. The front row should be reserved for those students who arrive late so that they don't have to climb over students who have already started to work in order to find a seat.

Nov 1 2016
My version of the Spectroscopy and Reactions notes have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Oct 31, 2016
To see the answer key to Quiz #10, Click HERE.
To see the new Quiz #11, Click HERE.
The deadline for submitting Quiz #11 is Sunday, Nov 6th, 6PM. The answer key will be posted after the deadline so that you can use the quiz to study for the next midterm.

Oct 30, 2016
Yesterdays review session has now been posted on the recorded lectures page.  More...
Oct 29, 2016
Office hours today, Saturday Oct 29th, will take the form of a review session, 3:00 - 4:00 PM. It will be held in PS H-132. Sometimes the doors to the PS building are locked on the weekends, I will try to remember to open the doors at the end of H-wing. The review session will be recorded in the same way as the lectures, and posted online later in the day.

You can also watch the review session "live" over the internet using Adobe Connect, click HERE. Login to the Connect site as a guest.

The subject of the review session will be Acid/base reactions and mechanisms.

Oct 26, 2016
After a rather lengthy delay, for which I apologize, the Current Points page been updated with your scores for the first 9 quizzes, AND, the first midterm after all regrades, Click HERE. Please check to make sure there are no errors.

The regraded midterm #1 scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update that one too, take the Current Points page as the definitive list of points.

Oct 26, 2016
To see the answer key to Quiz #9, Click HERE.
To see the new Quiz #10, Click HERE.
The deadline for submitting Quiz #10 is Sunday, Oct 30th, 6PM.

Oct 23, 2016
The results for midterm #2 are now posted on the Exam Scores page.  More...
Oct 22, 2016
Todays review session has now been posted on the recorded lectures page.  More...
Oct 22, 2016
Office hours today, Saturday Oct 22nd, will take the form of a review session, 4:00 - 5:00 PM, NOTE THAT THIS IS ONE HOUR LATER THAN USUAL BECAUSE WE ARE GRADING TESTS THIS AFTERNOON! It will be held in PS H-132. Sometimes the doors to the PS building are locked on the weekends, I will try to remember to open the doors at the end of H-wing. The review session will be recorded in the same way as the lectures, and posted online later in the day.

You can also watch the review session "live" over the internet using Adobe Connect, click HERE. Login to the Connect site as a guest.

The subject of the review session will be NMR.

Oct 20, 2016
To see the new Quiz #9, Click HERE.
The deadline for submitting Quiz #9 is Sunday, Oct 23rd, 6PM.

Oct 16, 2016
To see the answer key to Quiz #8, Click HERE.
Oct 15, 2016
Todays review session has now been posted on the recorded lectures page.  More...
Oct 14, 2016
Todays review session has now been posted on the recorded lectures page.  More...
Oct 14, 2016
You will have noticed that there are no Practice Exams for midterm #2 on the homework website. I intended to load these questions, but haven't been able to find the time to do that yet.

However, I know that practice exams are useful and so I have some pdf files with practice exams that you can use instead. Remember, practice exams and old exams are not the best tools for learning, since the answers on the practice exams do not have detailed explanations, your primary learning tool should be the homework site, use the practice exams to test yourself and get used to answering problems in that format.

The practice exams will include NMR problems, you can ignore those. To see the practice exams in question form (pdf file), Click HERE.
To see the answer keys (pdf file), Click HERE.
To see the answer keys in html (web page) format, Click HERE.

Oct 14, 2016
The second midterm is this coming Monday. You are allowed to bring a model kit to the exam to solve conformation problems if it is helpful, HOWEVER, if you do, do NOT bring the entire kit and expect to build a model in the actual exam! You won't have time to do that and you will spill bonds and atoms all over the floor. Instead, bring a PRE-BULT cyclohexane and/or ethane, with some other atoms that can take the pace of the various substituents (don't try to build an isopropyl substituent, use a blue atom in it's place, etc.).

As already posted, the exam will include IR spectroscopy but no NMR.

I forgot to mention this for the first midterm, but DO NOT SIT ON THE FRONT ROW IN EITHER EXAM ROOM. The front row should be reserved for those students who arrive late so that they don't have to climb over students who have already started to work in order to find a seat.

Oct 13, 2016
To see the new Quiz #8, Click HERE.
The deadline for submitting Quiz #8 is Sunday, Oct 16th, 6PM. Quiz #8 contains material that you need to cover to prepare for midterm #2. The answer key for quiz #8 will be posted just after 6PM Sunday.

Oct 13, 2016
The second midterm will cover all material UP AND INCLUDING IR SPECTROSCOPY, no NMR, in other words, up to page 17 of the spectroscopy notes, and the homework problems up and including Interpreting IR Spectra.
Oct 13, 2016
There will be TWO pre-test review sessions, the first will be Friday, in SCOB 150, the TIME IS 11AM - 1PM (now confirmed). The second will be Saturday 3PM - 5PM, in LS A-191 (our regular classroom). Both will cover different material and both will be recorded. You will not be able to watch "live" since I can only do that from PS H-132.
Oct 7, 2016
There will be NO OFFICE HOURS/REVIEW SESSION tomorrow, Saturday Oct 7th, due to fall break. The next Office Hours will be Wednesday Oct.11th, enjoy your break!
Oct 5, 2016
To see the answer key to Quiz #7, Click HERE.
There is no quiz this week due to Fall Break!

Oct. 5 2016
My version of the Alkanes notes have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Oct 5, 2016
Well, a miracle occurred and the lecture recording today worked! The new computer gives video files that are quite a bit larger than the old ones, I hope this doesn't result in slower streaming or longer download times.  More...
Oct 4, 2016
Continuing the theme of broken recordings, yet again I had problems in Monday, the lecture recording again failed, so did a re-recording attempt yesterday. I finally go tit to work today, and so Monday's lecture is now on the recorded lectures page, many apologies for the delay  More...
Oct 2, 2016
Nothing works this semester! Yesterday's recording of the review session was also lost due to a software problem, however, I recreated the review session (covered the same same material) by combining parts of 2 review sessions from Fall 2014 again, this is now posted on the recorded lectures page.  More...
Oct 1, 2016
As mentioned in class, one section of the gapped notes is not included in the package, you will need to print that section and use it in lecture. To get to this section as a pdf file to print it, click HERE.
Sept 30, 2016
Today's lecture is late because unfortunately, the recording of todays lecture was lost. I recorded an alternate version, which is now on the recorded lectures page.  More...
Sept 30, 2016
Office hours tomorrow, Saturday Oct 1st, will take the form of a review session, 3:00 - 4:00 PM. It will be held in PS H-132. Sometimes the doors to the PS building are locked on the weekends, I will try to remember to open the doors at the end of H-wing. The review session will be recorded in the same way as the lectures, and posted online later in the day.

You can also watch the review session "live" over the internet using Adobe Connect, click HERE. Login to the Connect site as a guest.

The subject of the review session will be conformations of alkanes and cycloalkanes.

Sept 29, 2016
To see the answer key to Quiz #6, Click HERE.
To see the new Quiz #7, Click HERE.
The deadline for submitting Quiz #7 is Sunday, Oct 2nd, 6PM.

Sept 28, 2016
Apologies, there was a typo on the syllabus and on the website regarding my Wednesday office hours. On Wednesdays they are 8:30AM - 9:30AM, not 8:30PM - 9:30PM. I apologize to those students who tried to attend office hours this evening!
Sept 28, 2016
Alkane conformations involve an understanding of structures in 3-D, which is not easy to do on paper. Therefore, here are several short movies that illustrate the 3-D structures of alkanes, and also show you how to solve some problems related to these 3-D structures. First, how to use the HGS model kit:
How to Use the HGS Model Kit

Now some to help understand the conformations of alkanes and how to properly draw Newman projections and sawhorse structures:
Steric versus Repulsion Effects in Alkane Conformations
Newman Projection to 3-D or Sawhorse Structure
Newman Projection to 3-D or Sawhorse Structure using a Model Kit

Now, cyclohexane chairs and interconversions:
Chair-chair interconversion for cis-1,4-dimethylcyclohexane (used with kind permission of Professor Stefan Immel, Technical University of Darmstadt)
Cyclohexane
Substituted Cyclohexane
Chair Interconversion Misconceptions
Building Cyclohexane Using a Model Kit
Chair-to-Chair Interconversion Using an HGS Model Kit

Sept 25, 2016
The results for midterm #1 are now posted on the Exam Scores page.  More...
Sept 24, 2016
Unfortunately, the recording of todays review session was lost, however, I have a recording of essentially the same review session from Fall 2014 that is now posted on the recorded lectures page. Apparently the weather was bad that day in 2014!  More...
Sept 23, 2016
Office hours tomorrow, Saturday Sept. 24th, will take the form of a review session, 3:00 - 4:00 PM. It will be held in PS H-132. Sometimes the doors to the PS building are locked on the weekends, I will try to remember to open the doors at the end of H-wing. The review session will be recorded in the same way as the lectures, and posted online later in the day.

You can also watch the review session "live" over the internet using Adobe Connect, click HERE. Login to the Connect site as a guest.

The subject of the review session will be resonance.

Sept 23, 2016
The new Quiz #6 has been posted, Click HERE. The deadline for submission is Sunday Sept. 25th, 6PM.
Sept. 23, 2016
My version of the Resonance notes have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Sept 18, 2016
To see the answer key to Quiz #5, Click HERE.
Sept. 18, 2016
My version of the Bonding notes have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Sept 17, 2016
The review session from today has now been posted on the recorded lectures page.  More...
Sept 16, 2016
I just loaded some more practice exams onto the homework site for midterm #1, there is a now new category of problems with the Heading Practice Exams 1. There are 3 practice exams there and in each the problems are exam type and are mixed together exam style.  More...
Sept 16, 2016
The review session from today has now been posted on the recorded lectures page.  More...
Sept 15, 2016
Question #4 is DELETED from Quiz #5, all answers, A, B, C, D will be considered correct.
Sept 15, 2016
There will be TWO pre-test review sessions, the first will be Friday, 3:30PM - 5PM in LS A-191 (our regular classroom). The second will be Saturday 3PM - 5PM, again in LS A-191. Both will cover different material and both will be recorded. You will not be able to watch "live" since I can only do that from PS H-132.
Sept 15, 2016
Memorizing Stuff: Although we try to minimize it in this class, there will be some memorization in just about any college course. For midterm #1 you will need to memorize the names of the functional groups. You could do this the standard way, by making flash cards or equivalent, but I suggest a different approach.
Memorization using flash cards etc hard and mind numbing, starting this way is a grim way to learn this stuff. Instead, I suggest writing a summary of the functional groups out on a sheet of paper (making such a summary is good practice on its own). THEN, with this sheet in front of you, work as many functional group problems as you can with your sheet in FRONT OF YOU. This way you will get through many more problems without getting stuck, and you will be using functional groups IN CONTEXT, at the same time as learning how to solve functional group problems, rather than trying to blindly memorize them. This is a MUCH better way of learning material like this, learn in the context where you will have to use the information.
Do this when you solve ALL KINDS of ochem problems, circle the functional groups in every structure you draw as you work problems. In this way you will learn many of the functional groups without having to memorize them.
FINALLY, a day or so before the exam, test yourself on the functional groups by e.g. covering the names on the sheet you made, and you find that you have learned most of them and there are only one or two left over that you will then have to brute force memorize for the test. In this way you will learn how to solve problems and minimize memorization at the same time.
The ones you have to memorize at the last minute you will forget again after the test, but I don't care, since by the end of the course you will know them all because you have used them all in relevant contexts.

Sept 15, 2016
Midterm #1: The topics for midterm #1 will be the first sections of the notes only, Bonding, it will not cover Resonance or Alkanes. This is how I suggest you study for the midterm:
Don't start by reviewing lectures or reading the notes. ONLY review lectures or read the notes if you need to to catch up on specific topics that you find you don't know by doing the homework.
Work as many of the homework problems as you can, and don't wait until the weekend, by then it will be too late, you can't study for an organic chemistry test a couple of days before it.
After you have completed the homework problems, THEN, try the old exams and practice exams that are posted on the website. You may be tempted to start with the old exams, but I advise against that since the exam questions do not have the same kind of explanations that the homework problems do, you will get a problem wrong and you will not know why. However, it is important to do some problems in the context of the exams so that you learn what the structure of the exams is and what kind of questions are asked.
If you don't understand something then ASK as soon as possible. It is difficult for me to answer some chemistry questions by email, but I can try. Even better, ask on the class Facebook page so that the answer I give will be seen by more than just you. Also, there are former students if mine on the Facebook page who may be able to give you a good answer essentially 24 hours a day.
Remember, the ONLY way that you learn organic chemistry is by doing PROBLEMS! But if you can't do the problems because you don't understand, then please don't be afraid to ask!  More...

Sept 14, 2016
Technical problems resulted in a delay in posting todays lecture, apologies, it is now on the recorded lectures page.  More...
Sept 13, 2016
To see the answer key to Quiz #4, Click HERE.
To see the new Quiz #5, Click HERE.
The deadline for submitting Quiz #4 is Sunday, Sept 18th, 6PM.

Sept 10, 2016
The review session from today has now been posted on the recorded lectures page.  More...
Sept 9, 2016
Office hours tomorrow, Saturday Sept. 10th, will take the form of a review session, 3:00 - 4:00 PM. It will be held in PS H-132. Sometimes the doors to the PS building are locked on the weekends, I will try to remember to open the doors at the end of H-wing. The review session will be recorded in the same way as the lectures, and posted online later in the day.

You can also watch the review session "live" over the internet using Adobe Connect, click HERE. Login to the Connect site as a guest.

The subject of the review session will be stereoisomerism and polar bonds.

Sept 6, 2016
The Current Points page been updated with your scores for the first 3 quizzes, Click HERE. Please check to make sure there are no errors.
Sept 6, 2016
To see the answer key to Quiz #3, Click HERE.
To see the new Quiz #4, Click HERE.
The deadline for submitting Quiz #5 is Sunday, Sept 11th, 6PM.

Sept 3, 2016
The review session from today has now been posted on the recorded lectures page.  More...
Sept 3, 2016
This week in lecture I mentioned a book that introduces quantum mechanics in the best way that I have yet found. If you are interested, it is available for just a few dollars on Amazon: 30 Years That Shook Physics.
Sept 2, 2016
Office hours tomorrow, Saturday Sept. 3rd, will take the form of a review session, 3:00 - 4:00 PM. It will be held in PS H-132. Sometimes the doors to the PS building are locked on the weekends, but usually one of the doors on Palm Walk are open, and I will try to remember to open the doors at the end of H-wing. The review session will be recorded in the same way as the lectures, and posted online later in the day.

You can also watch the review session "live" over the internet using Adobe Connect, click HERE. Login to the Connect site as a guest.

The subject of the review session will be molecular orbitals.

Sept 2, 2016
As my graduate student Ara announced in class this week, we are inviting you to participate in a chemical education project this semester. We want to understand the factors that contribute to success in organic chemistry so that we can learn how to teach you better. To participate in the project you must complete TWO surveys, one at the start of the semester and another (much shorter one) at the end.

If you participate in this project you will receive 1% of the available class points as extra credit towards your grade.

Participation is completely voluntary and anonymous, if you choose to participate you can withdraw at any time. If you do not wish to participate and still want to earn the 1% extra credit you can do so by sending an email to Dr. Gould who will supply you with some questions to answer essay-style.

To access the start of semester survey, click HERE. To participate you MUST COMPLETE THIS START OF SEMESTER SURVEY by the end of the day FRIDAY Sept 9th, i.e. 1 week from now. ONCE YOU START THE SURVEY YOU SHOULD FINISH IT! If you start, then leave it for a while, and then come back then the system will time you out and you will have to start all over again.

We thank you for helping us to learn how to teach better.

Sept 1, 2016
We are starting to look at aspects of molecular structure that are 3-dimensional, and are therefore a bit harder to understand, especially pi-bonding. The best way to visualize these things is to make a model, either mechanically or in a computer, as shown in the following small videos (click the titles in bold below).
Pi-Bonds and Anti-Bonds
Visualizing the sigma- and pi-bonds in ethylene using the HGS model kit
Pi-Orbitals in Triple Bonds

Here are some more very small videos that attempt to illustrate some of the 3-D aspects of molecular structure that we have discussed in class recently.
Tetrahedral Geometry
Trigonal Planar Geometry
Linear Geometry
Rotation and Single Bonds

Sept 1, 2016
To see the answer key to Quiz #2, Click HERE.
Remember, question #s 6 and 7 were pulled from this quiz, all answers to these questions will get 1 quiz point.

To see the new Quiz #3, Click HERE.
The deadline for submitting Quiz #3 is Sunday, Sept 4th, 6PM.

Your scores for the first 2 quizzes will be posted in this website later this week.

Aug 30, 2016
The quiz submit page is fixed, you can now submit Quiz #2. The deadline is 6PM, Wednesday August 31st.

If you already submitted Quiz #2 you can check that it has been submitted correctly by going to the Quiz Submit page and clicking the "Click HERE to check your submitted Quizzes" link at the bottom of the screen, it will show you all of your quiz submissions together with date/time etc.

Apologies for the inconvenience, I hope this is the last problem we have this semester

Thanks for your patience!

Aug 29, 2016
So, my web person who can fix the quiz problem seems to be out of town today, and so I can't fix it so that you can submit Quiz #2. Therefore, I will push back the deadline for Quiz #2 until 6PM WEDNESDAY August 31st.

Apologies, it isn't usually like this, we normally have a working quiz system, we have an unfortunate series of events this semester.

Thanks for your patience!

Aug 28, 2016
A little late, and I apologize for this, but you can obtain a pdf version of the class gapped notes for use on an iPad or equivalent instead of buying the hard copy at the bookstore. If you would like to get the pdf version, click HERE.
Aug 28, 2016
Now that we are into the semester properly, it will be useful to revisit the homework site and remind you how it works and what its purpose is. For a short video on this, click HERE.
Aug 28, 2016
The wonderful start to the semester continues with another technical problem. I was unable to record the review session yesterday, the recorder software was changed over the summer, nobody told me, you know....

BUT, the equivalent review session I recorded at this time last year addresses much of the same material, conversions between line-angle and condensed formulas etc., and is basically just as relevant, and so to see that one, click HERE.

Normal service will be resumed next week! By the way, thanks to everyone who came and those who attended "online" yesterday, was a great turnout for a Saturday so early in the semester!

Aug 27, 2016
THE QUIZ SUBMIT PAGE won't be fixed today, the deadline for Quiz #2 is now officially extended until TUESDAY, August 30th, 6:00PM, apologies for the inconvenience.

Also, question 7 on the quiz involves stereoisomers, which I had forgotten that we hadn't covered when I posted it, and so question 7 will be pulled from the quiz, submit any answer, A, B, C or D are it will be graded correct.

AND, question #6 is ambiguous, and so it will ALSO be pulled from the quiz, again, answer A, B, C or D, all will be graded correct.

Quiz #3 will be error and problem free, I promise!

Aug 27, 2016
Unfortunately I was unable to record the review session today, Tomorrow I will record something equivalent and post it here, look for an announcement.
Aug 27, 2016
THE QUIZ SUBMIT PAGE IS BROKEN, WE ARE TRYING TO FIX IT, IF IT IS NOT FIXED BY TOMORROW I WILL PUSH BACK THE SUBMIT DEADLINE FOR QUIZ #2, APOLOGIES FOR THE INCONVENIENCE!
Aug 26, 2016
Office hours tomorrow, Saturday Aug 27th, will take the form of a review session, 3:00 - 4:00 PM. It will be held in PS H-132. Sometimes the doors to the PS building are locked on the weekends, but usually one of the doors on Palm Walk are open, and I will try to remember to open the doors at the end of H-wing. The review session will be recorded in the same way as the lectures, and posted online later in the day.

You can also watch the review session "live" over the internet using Adobe Connect, click HERE. Login to the Connect site as a guest.

The subject of the review session will be organic structures.

Aug 26, 2016
Reminder, Quiz #1 is due today, 11:59PM. For additional instructions on how to submit the quiz and how quizzes work in his class, click HERE.
Aug 24, 2016
The Quiz Submit link is now open, all student should be able to submit quizzes. For instructions on how to do this, click HERE.

Quiz #1 is due before 11:59PM, Friday August 26th. Quiz #2 is due 6PM Sunday August 28th. If you are unable to submit a quiz for any reason, please don't ask me to submit it for you, I will not be able to since the quiz system automatically switches over to the new quiz. This is what the dropped quizzes are for.

Aug 24, 2016
To see Quiz #2, click HERE. Quiz #2 is the first chemistry quiz. The deadline for submission of Quiz #2 is 6:00PM, Sunday August 28th. The Quiz Submit page will open TOMORROW, Thursday August 25th, look for an announcement on this page. When the Quiz Submit link opens you will be able to submit Quiz #1 (see below), and after the Quiz #1 deadline (11:59PM, Friday August 26th) you will be able to submit Quiz #2. You will be able to submit the quizzes as many times as you like until the relevant deadline.
Aug 24, 2016
The third lecture has now been posted on the Recorded Lectures page. From now on I will not post an announcement about lecture posting, please just check the recorded lectures page for new lecture postings.  More...
Aug 22, 2016
The second lecture has now been posted on the Recorded Lectures page.  More...
Aug 20, 2016
Information on honors contracts for this class have now been posted.  More...
Aug 19, 2016
As mentioned in the syllabus video, I have office hours on Saturday afternoon all semester EXCEPT, tomorrow, Saturday August 20th, since I have another commitment. Normal Saturday service will resume next week.
Aug 19, 2016
The homework site is NOW operational, access the site via the Homework button/link at the top of this page. For information on how to use it, Click HERE. If you tried to register already and got sent to the wrong site, don't worry, when the new site is activated you can register for the new site using the login and password you already created.
Aug 19, 2016
The first lecture has now been posted on the Recorded Lectures page.  More...
Aug 18, 2016
Quiz #1 has been posted, Click HERE. It is a syllabus quiz. The deadline for submission of Quiz #1 is 11:59PM, Friday August 26th, HOWEVER, you will not be able to submit the quiz until after the drop/add deadline, so please don't click the Submit Quiz link above, it will not work until I make an announcement here and/or in class.

Quizzes will be posted here, on the main page, as pdf files as above for Quiz #1. You work on the quiz on your own and submit the answers via the Quiz Submit link above (after it is activated). More details about quiz submission will be provided later.

Aug 18, 2016
To get a copy of the syllabus for this class, click HERE.

This class uses "gapped notes". You MUST buy a copy of these from the bookstore, they take the place of a textbook, which is not required for this class. If you need a "starter" copy of the notes for the first lecture or two, you can click HERE to download them. This short set will only last 1 - 2 lectures, after that you will need your own copy of the complete set.

Aug 18, 2016
For a video introduction to the class, the syllabus and how everything is supposed to work this semester, click HERE. This introduction is relevant to BOTH the regular/onground and also the online/hybrid students.

For a video introduction specifically for online/hybrid class students, click HERE.

Aug 18, 2016
The class has a Facebook page, click HERE.
Aug 16, 2016
This class does NOT use a textbook. In the past when I have required or recommended a textbook most students reported that they never used it. This does not mean that you cannot use a textbook, of course, by all means use a textbook if it helps you to learn. A good textbook is Organic Chemistry 7th Edition, by Paula Bruice, however, just about all organic textbooks are the same, you could use any of them as a reference, and used older editions of textbooks from Amazon are a fantastic deal. For example, I have see a 5th edition of the Bruice textbook on Amazon for just a few dollars. It should be fairly easy for you to find the appropriate reading and problems that relate to the material that we are covering in any textbook, although some textbooks do not cover pericyclic reactions, a second semester topic (the Bruice one does).

Many students will ask me if they should get the textbook. Unfortunately I am not able to give a satisfactory answer, since different students have very different needs. Some students really need to study from a textbook and appreciate learning a topic from a different perspective. Some students want a permanent textbook to study for the MCAT, for example. You have to make your own decision on this I am afraid. However, as mentioned above, I have found that most students in my classes tend not use the textbook.

Note that the lab is a separate course, check your lab course website for requirements for that course.


Aug 18, 2016
A Molecular Model Kit, IS REQUIRED for CHM 233. The best kit is the HGS 1013/1013A Organic Chemistry Set for Students (click here). This kit is available from the bookstore. There is a more sophisticated version of the HGS kit, 1003 Organic Chemistry set C, however, the less expensive 1013 version works well enough for CHM 233. An HGS kit is available from Amazon, for ca. $20. Do not buy the Prentice Hall Molecular Model Set For Organic Chemistry (or other kits like it) (click here), it makes pretty models but is terrible for CHM 233.
Aug 18, 2016
It is not possible for me to give an override into this class since I am not allowed to override the reserved seat assignments or the room capacity. If you really want to get into this class, come during the first week and be persistent in trying to register online. There will be a lot of drop/add activity during the first week, persistence usually pays off. Remember that the class is offered both in the regular onground lecture format and also as an online/hybrid version. Both classes are basically identical. If you are registered for the online/hybrid class you are welcome to attend lecture with the regular class.