Chapter26: Biomolecules: Amino Acids, Peptides, And Proteins
Section26.4: Peptides And Proteins
Problem 9P: Draw the structure of M-P-V-G, and indicate its amide bonds.
Related questions
Question
- Identify the frequency of both carbonyl stretches in your IR. Which one corresponds to the benzyl ester?
|
Wavenumber (cm-1) |
Bond |
Vibration |
Shape |
Intensity |
Functional Group |
|
3288.63 cm-1 |
N-H |
Stretch |
Sharp |
Weak |
|
|
3078.39 cm-1 |
C-H |
Stretch |
Sharp |
Weak |
|
|
2976.16 cm-1 |
C-H |
Stretch |
Sharp |
Weak |
|
|
1720.50 cm-1 |
C=O |
Stretch |
Sharp |
Medium |
Ester |
|
1653.00 cm-1 |
C=O |
Stretch |
Sharp |
Medium |
Amide |
|
1556.55 cm-1 |
C=C |
Stretch |
Sharp |
Medium |
Aromatic |
Transcribed Image Text:T
100
4000
100-
% T
90
80
70
60
4000
3288.63-
3000
3078.39-
2976.16
3000
2000
2000
LabSolutions Lab SolutionsIR¥Data\CHEM
_Spring 2023 MW Dhimitruka¥AR and GJ
serini.ispd
придурорт
1500
migh
1720.50-
1653.00.
1556.55
1498.695
1363.67-
1450.47-.
1317.38
1500
AR and GJ Passerini
1265.30
Item
2 Sample name
3
Sample ID
4
Option
5
Intensity Mode
6
Apodization
9
No. of Scans
10
Resolution
1000
1114.86-
1000
731.02
698.23-
705.95+
16
4 cm-1
Value
500
cm-1
500
cm-1
%Transmittance
Happ-Genzel
Peak
Intensity
698.23 85.06
705.95 81.38
731.02 86.91
1114.86 85.97
1265.30 84.32
1317.38 92.28
1363.67 94.45
1450.47 92.68
1498.69 95.44
101556.55 89.00
1653.00 84.42
1720.50 87.84
2976.16 96.43
3078.39 96.79
3288.63 95.35
1
2
3
4
5
6
7
8
9
11
12
13
14
15
Corr.
Intensity
4.38
8.81
8.35
9.53
10.89
4.00
2.49
4.67
1.62
8.25
12.20
10.24
0.55
0.44
2.12
SHIMADZU
Corr.
Base (H) Base (L) Area
Area
702.09 688.59 142.353 19.872
715.59 702.09 145.514 40.781
738.74 715.59 160.917 61.576
1134.14 1101.35 252.177 112.906
1280.73 1238.30 426.877 202.048
1327.03 1300.02 138.246 39.593
1369.46 1350.17 76.537 18.889
1460.11 1408.04 181.017 46.261
1506.41 1489.05 61.834 10.432
1577.77 1506.41 355.799 158.888
1678.07 1629.85 334.145 172.921
1751.36 1685.79 274.487 147.344
2987.74 2970.38 55.242 4.550
3097.68 3062.96 102.232 6.961
3319.49 3246.20 249.547 61.362
Comment
Transcribed Image Text:b=0
H-N
"X
ester of an a-hydroxy amide
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