Match a structure with the correct IR spectrum. You will, of course, notice that there are more structures than spectra, so some structures are not represented. Simply fill in the blank with the product number (i.e. 1, 2, 3, etc.). 0.8 100 sur A 4000 E 3500 3000 Product 1 Product 4 2500 2000 OH 2000 vavenumber cm 1 2000 1500 Wavenumbers (cm-1) wavenumber cm'l {1}1 1500 Product 2 Product 5 M 1500 1000 1000 1000 HO Product 6 m 500 500 Product 3 100 OH Part a Answer: Part b Answer: Part c Answer:

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter19: Nuclear Magnetic Resonance Spectroscopy
Section: Chapter Questions
Problem 19.5QAP
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2. READ THE DIRECTIONS TO EACH QUESTION CAREFULLY - not following the directions means you get the question wrong!
3. FORMAT YOUR ANSWERS AS DIRECTED - formatting your answers incorrect means you get the question wrong!
4. Below are the IR regions and NMR chemical shifts table for use with the spectroscopy problems:
¹H NMR
12 11 10 9
R
O=C
OH R
O=C
H
CO
8
7
ppm
6
OH
H C=C-H
5
NH
H-C-X
H-C-O
-OH
X = F, Cl, Br
(i.e. electronegative atom)
3
-NH-
2
H-C-N
H-C-S
C=C-H
H-C-C=C
HC
1
H-C-C=O-CH
-CH3
-CH₂-
0
4000
ID
small range
range of values
broad peak
=C-H
N-H
3250-
3300
broad with spikes
-3300
3500
-O-H
broad-3300
-3400
-0-H CEN
N-H
H
H
2730-
2820
-C-H
usually
CO
CO strong
=C
H
3000- 2 peaks
3100 I
2850-
2960
H
O
<-C-O-H
broad-3000
3000
-CEN
↓
2200
-CICH
B
2200
2500
wavenumber, cm-1
2000
H
CC
CN
H
1600-
1660
1680
0000000
OR
1730
1710
1600
NR₂
1650
1500
1000
Transcribed Image Text:2. READ THE DIRECTIONS TO EACH QUESTION CAREFULLY - not following the directions means you get the question wrong! 3. FORMAT YOUR ANSWERS AS DIRECTED - formatting your answers incorrect means you get the question wrong! 4. Below are the IR regions and NMR chemical shifts table for use with the spectroscopy problems: ¹H NMR 12 11 10 9 R O=C OH R O=C H CO 8 7 ppm 6 OH H C=C-H 5 NH H-C-X H-C-O -OH X = F, Cl, Br (i.e. electronegative atom) 3 -NH- 2 H-C-N H-C-S C=C-H H-C-C=C HC 1 H-C-C=O-CH -CH3 -CH₂- 0 4000 ID small range range of values broad peak =C-H N-H 3250- 3300 broad with spikes -3300 3500 -O-H broad-3300 -3400 -0-H CEN N-H H H 2730- 2820 -C-H usually CO CO strong =C H 3000- 2 peaks 3100 I 2850- 2960 H O <-C-O-H broad-3000 3000 -CEN ↓ 2200 -CICH B 2200 2500 wavenumber, cm-1 2000 H CC CN H 1600- 1660 1680 0000000 OR 1730 1710 1600 NR₂ 1650 1500 1000
Match a structure with the correct IR spectrum. You will, of course, notice that there are more structures than spectra, so
some structures are not represented. Simply fill in the blank with the product number (i.e. 1, 2, 3, etc.).
Transmitance
1.0
0.8
0.6
0.4
0.2
0.0
100
Transmittance %T
100
Transmittance %T
8
0
A
0
4000
E
4000
3500
3000
3000
9000
L
OH
Product 1
Product 4
www.
2500
2000
2000
wavenumber cm-1
2000
1500
Wavenumbers (cm-1)
wavenumber cm-1
1500
O
H
Product 2
Product 5
vy
1500
VM
1000
amm
1000
1000
HO.
500
500
Product 6
500
Product 3
OH
Part a Answer:
Part b Answer:
Part c Answer:
Transcribed Image Text:Match a structure with the correct IR spectrum. You will, of course, notice that there are more structures than spectra, so some structures are not represented. Simply fill in the blank with the product number (i.e. 1, 2, 3, etc.). Transmitance 1.0 0.8 0.6 0.4 0.2 0.0 100 Transmittance %T 100 Transmittance %T 8 0 A 0 4000 E 4000 3500 3000 3000 9000 L OH Product 1 Product 4 www. 2500 2000 2000 wavenumber cm-1 2000 1500 Wavenumbers (cm-1) wavenumber cm-1 1500 O H Product 2 Product 5 vy 1500 VM 1000 amm 1000 1000 HO. 500 500 Product 6 500 Product 3 OH Part a Answer: Part b Answer: Part c Answer:
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