Chemistry 332 - Winter 1997

Homework - Chapter 13

McMurry, pp 405 - 409:
Problems 13.18-20, 23, 26-36, 38-41, 49-52


1. Predict the general features of the H and C-13 NMR spectra of the following compounds. Use the format of question 2 below.

a) diethyl ketone

b) p-ethylbenzoic acid

c) CH3-O-CH(CH3)-CH2-CH=O


2. Identify the following compounds based on their H NMR spectra:

a) C3H6O
2.72 ppm, area 2, quintet
4.73 ppm, area 4, triplet

b) C8H8O2
11.0 ppm, area 1, singlet
7.0 ppm, area 5, multiplet
3.0 ppm, area 2, singlet

c) C10H14
7.05 ppm, area 4, singlet
2.45 ppm, area 4, quartet
1.05 ppm, area 6, triplet

d) C3H6Br2
3.80 ppm, area 1, multiplet
3.50 ppm, area 2, doublet
1.12 ppm, area 3, doublet

e) C6H10
4.82 ppm, area 2, singlet
2.22 ppm, area 4, triplet
1.65 ppm, area 4, triplet