Lecture 13 - NMR Spectroscopy II

Question 1

chemical equivalence in diastereopes:

Answer 1

diastereotopic groups are chemically nonequivalent under all conditions

Question 2

chemical shifts in - homotopic, enatiotopic & disatereotopic protons:

Answer 2

• homotopic protons have identical chemical shifts

• enantiotopic protons have identical chemical shifts

• diastereotopic protons have different chemical shifts

Question 3

The relative peak area (not height!) depends on:

Answer 3

the number of contributing protons