1. Chemistry 125: review session April 6, 2011 This slide was used in reviewing NMR.
The corresponding portion of the Audio
file comes between 1:58 and 2:13.
This
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2. Question 8 diastereotopic ! enantiotopic ? enantiotopic different  CH D
C C N H D B A
same  (unless chiral, resolved solvent)
enantiotopic
no mirror plane
mirror plane
TMS D B C
Could this 3 Hz doublet be due to long-range splitting by A?
(> 3 Hz for larger field)
different 
There is no reciprocal 3 Hz quintet for A!
Just the 7 Hz triplet from C!
1:3:3:1
7 Hz
1:2:1
Question 8