Which of the following vibrations will be infrared-active and which should be infrared-inactive? (a) The C=O stretch in propanone (b) The C=C stretch in trans-3-hexene (c) Cyclohexane ring "breathing" (simultaneous stretch of all C-C bonds) (d) The N-O stretch in nitromethane (CH3NO2)

Which of the following vibrations will be infrared-active and which should be infrared-inactive? (a) The C=O stretch in propanone (b) The C=C stretch in trans-3-hexene (c) Cyclohexane ring "breathing" (simultaneous stretch of all C-C bonds) (d) The N-O stretch in nitromethane (CH3NO2)

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

Which of the following vibrations will be infrared-active and which should be infrared-inactive?

(a) The C=O stretch in propanone

(b) The C=C stretch in trans-3-hexene

(d) The N-O stretch in nitromethane (CH3NO₂)

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