1H NMR signal assignment of ethyl 4-chlorocinnamate, label the proton environments according to the provided spectrum Wittig Lab: 1H NMR Spectrum (300 MHz, CDC13) of Ethyl 4-ChlorocinnamateExpansions of 7.80-6.20 ppm region6.5-7.615-7.5611.16-10.0-6.392-7.4207.3917.321-7.2927.6 7.5 7.4 7.3¹H (ppm)1.00-9.52.37لسلا-6.3386.4¹H (ppm)2.00-6.3-1000-8007.6157.561-7.420-7.391-7.321-7.292-600-400-200-0--200-800-600-400-200FO--200선시1.162.372.00--6.392-6.3381.00u9.0 8.5 8.0 7.5 7.0 6.5 6.05.5 5.0¹H (ppm)4.52.12-4.03.53.02.52.0-1.3231.299- 1.2751.53.081.00.5-2200-2100-2000-1900-1800-1700-1600-1500-1400-1300-1200-1100-1000-900-800-700-600-500-400-300-200-100-0--100--2000.0

1H-NMR spectroscopy is mainly used for the identification of the complete structure of an organic…

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1H NMR signal assignment of ethyl 4-chlorocinnamate, label the proton environments according to the provided spectrum

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter12: Structure Determination: Mass Spectrometry And Infrared Spectroscopy

Section12.8: Infrared Spectra Of Some Common Functional Groups

Problem 9P

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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

¹H NMR signal assignment of ethyl 4-chlorocinnamate, label the proton environments according to the provided spectrum

Wittig Lab: 1H NMR Spectrum (300 MHz, CDC13) of Ethyl 4-Chlorocinnamate
Expansions of 7.80-6.20 ppm region
6.5
-7.615
-7.561
1.16-
10.0
-6.392
-7.420
7.391
7.321
-7.292
7.6 7.5 7.4 7.3
¹H (ppm)
1.00-
9.5
2.37
لسلا
-6.338
6.4
¹H (ppm)
2.00-
6.3
-1000
-800
7.615
7.561
-7.420
-7.391
-7.321
-7.292
-600
-400
-200
-0
--200
-800
-600
-400
-200
FO
--200
선시
1.16
2.37
2.00-
-6.392
-6.338
1.00
u
9.0 8.5 8.0 7.5 7.0 6.5 6.0
5.5 5.0
¹H (ppm)
4.5
2.12-
4.0
3.5
3.0
2.5
2.0
-1.323
1.299
- 1.275
1.5
3.08
1.0
0.5
-2200
-2100
-2000
-1900
-1800
-1700
-1600
-1500
-1400
-1300
-1200
-1100
-1000
-900
-800
-700
-600
-500
-400
-300
-200
-100
-0
--100
--200
0.0

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