Calculate the IHD and explain (elucidate) the structure using the 1H and 13C NMR data. 1. ¹H-NMR C₂H₂NOAssign.9ABCDE-008Shift (ppm)7.7867.4477.3666.982.9527()5ppm- M3-N21Hzppm3118.53 7.8043116.58 7.7993115.36 7.7963114.01 7.7923110.35 7.7833108.28 7.7783106.81 7.7742986.82 7.4742985.47 7.4712984.25 7.4682980.35 7.4582978.27 7.4532976.07 7.4472972.17 7.4372970.83 7.4342969.48 7.4312953.00 7.3892951.17 7.3852949.58 7.3812944.70 7.3692943.36 7.3652941.89 7.3622937.87 7.3522936.16 7.3472935.18 7.3452790.16 6.9821182.01 2.9581177.25 2.946Int.4224529214397369281397244531856896165885425111720536510467157103361000958 1. 13C-NMR C₂H₂NO200ppm Int.168.46 174134.62 196131.23 474128.42 930126.94 100026.79 317180160140120100ppm80604020

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Answered: Calculate the IHD and explain…

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Calculate the IHD and explain (elucidate) the structure using the 1H and 13C NMR data.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.17QAP

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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

Question

Calculate the IHD and explain (elucidate) the structure using the 1H and 13C NMR data.

1. ¹H-NMR C₂H₂NO
Assign.
9
ABCDE
-00
8
Shift (ppm)
7.786
7.447
7.366
6.98
2.952
7
()
5
ppm
- M
3
-N
2
1
Hz
ppm
3118.53 7.804
3116.58 7.799
3115.36 7.796
3114.01 7.792
3110.35 7.783
3108.28 7.778
3106.81 7.774
2986.82 7.474
2985.47 7.471
2984.25 7.468
2980.35 7.458
2978.27 7.453
2976.07 7.447
2972.17 7.437
2970.83 7.434
2969.48 7.431
2953.00 7.389
2951.17 7.385
2949.58 7.381
2944.70 7.369
2943.36 7.365
2941.89 7.362
2937.87 7.352
2936.16 7.347
2935.18 7.345
2790.16 6.982
1182.01 2.958
1177.25 2.946
Int.
42
245
292
143
97
369
281
39
72
44
53
185
68
96
165
88
54
251
117
205
365
104
67
157
103
36
1000
958

1. 13C-NMR C₂H₂NO
200
ppm Int.
168.46 174
134.62 196
131.23 474
128.42 930
126.94 1000
26.79 317
180
160
140
120
100
ppm
80
60
40
20

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