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4
Spectroscopy Problems
Copyright © 2017 Pearson Education, Inc.
6.
Identify the compound with molecular formula
C
9
H
10
O
3
that gives the following IR and
1
H NMR
spectra.
2
7
6
5
4
3
2
1
0
8
10
9
1
3
2
2
1600
1800
4000 3800 3600 3400 3200 3000 2800 2600 2400 2200 2000
1400 1200 1000
800
600
450
100
90
80
70
60
50
40
30
20
10
0
0.0
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.0
A
B
S
O
R
B
A
N
C
E
%
T
R
A
N
S
M
I
T
T
A
N
C
E
7.
Identify the compound with molecular formula
C
5
H
11
Br
that gives the following
1
H NMR
spectrum.
7
6
5
4
3
2
2
6
3
1
0
8
1
2