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Author Archives: alan
SN2 kinetics and geometry
First, if you would like to see the MO pictures that I used in class today, check out last year’s post on back side attack & HOMO-LUMO overlap (Oct 13, 2008).There are also a couple of points that I want… Continue reading
Posted in Post-lecture
Tagged backside attack, HOMO-LUMO overlap, MO, SN2
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URGENT – Change schedule for Exam #3 ???
I've been looking over Chapter #9 and the schedule for the next two weeks and I'm kicking around two options in my mind. Option #1Exam #3 would still be on Monday, November 16. However, if the exam were to be… Continue reading
Posted in Class schedule, Exams
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Dining in a Looking-Glass Universe
Pity (or envy) poor Alice. In one book she falls down a rabbit hole. When she gets to her feet, she finds bits of food that demand to be eaten ("Eat me!"). And in the next book she steps through… Continue reading
Posted in Post-lecture
Tagged amino acid, chiral, enantiomer
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Lecture slides – Fri Nov 6
Slides from today's lecture can be viewed here.Correction: I was gently informed after lecture that I was wrong about the behavior of CH3CN (acetonitrile) and water. They do mix. I had said they don't. In fact, mixtures of these solvents… Continue reading
Posted in Post-lecture
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Lecture slides – Wed, Nov 4
I didn't use PowerPoint on Wednesday, but I did show potential maps of several simple molecules that represent the functional groups covered in chapter 8. Slides of these potential maps can be viewed here…. Continue reading
Posted in Post-lecture
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Isopentyl acetate report – due date & extra info
As reported in lecture this evening, the lab report for this experiment will be due at the "end" of Monday, Nov 16. FYI "end" means before I arrive on Tuesday morning.I forgot one vital piece of information concerning the lab… Continue reading
Posted in Labs
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Pharmaceutical Companies Develop Better Placebos
I'm sure you are all familiar with the "placebo effect", the ability of an inactive substance to produce biological effects. The usual explanation is that the placebo substance activates the patient's "belief" that a treatment is being received and this… Continue reading
Posted in Uncategorized
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Lecture slides – Fri Oct 30
The slides for last Friday's lecture, which covered the last part of Chapter 7 – the stereochemistry of chemical reactions – can be viewed here…. Continue reading
Posted in Post-lecture
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Lecture slides – Mon Nov 2
Today's lecture discussed how to name these classes of compounds: RX, ROH, RSH, ROR, RSR. An important point: the complexity of naming/drawing problems will be limited to compounds containing a single principal group.Slides for today's lecture are located here…. Continue reading
Posted in Post-lecture
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Lab this week – NMR Workshop
Those of you who check the online lab calendar have probably wondered what is an NMR workshop?Simple. It's classroom time devoted to studying Loudon, Chapter 13, Nuclear Magnetic Resonance (NMR) Spectroscopy.The students in each lab session this week will spend… Continue reading
Posted in Labs
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