Answered: 4. IR stretching frequency of C=O in…

4. IR stretching frequency of C=O in acetic acid is 1720 cm. But, The same in Benzoic acid appears at 1680 cm 1. Explain. 0 11 0 CH₂ / C HO OH acetic acid Benzoic acid

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter20: Molecular Spectroscopy And Photochemistry

Section: Chapter Questions

Problem 32P

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Question

4. IR stretching frequency of C=O in acetic acid is 1720 cm. But, The same in Benzoic acid appears
at 1680 cm 1. Explain.
0
11
0
CH₂
/
C
HO
OH
acetic acid
Benzoic acid

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