Considering IR spectroscopy, which of the following statements is incorrect? options: Concentrated alcohols give rise to broad signals while dilute alcohols give rise to narrow signals Carboxylic acids exist as dimer due to hydrogen bonding and thus produce a narrow signal at 3600 cm-1 and a characteristic signal due to C=O at 1700 cm-1 C=O bonds produce strong signals in an IR spectrum while C=C bonds often produce a weak signals Symmetrical C=C bonds and C≡C bonds do not produce signals Primary amines produce two signals resulting from symmetric stretching and asymmetric stretching

Caroxylic acids exists as dimer due to hydrogen bonding but the O-H stretch is a much wider band.…

Answered: spectroscopy

Science

Chemistry

spectroscopy

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL4: Proton (1h) Nmr Spectroscopy

Section: Chapter Questions

Problem 15E

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Question

Considering IR spectroscopy, which of the following statements is incorrect?

options:

	Concentrated alcohols give rise to broad signals while dilute alcohols give rise to narrow signals
	Carboxylic acids exist as dimer due to hydrogen bonding and thus produce a narrow signal at 3600 cm^-1 and a characteristic signal due to C=O at 1700 cm^-1
	C=O bonds produce strong signals in an IR spectrum while C=C bonds often produce a weak signals
	Symmetrical C=C bonds and C≡C bonds do not produce signals
	Primary amines produce two signals resulting from symmetric stretching and asymmetric stretching

Definition Definition Organic compounds with a nitrogen atom having a lone pair of electrons on it. Amines are derived from ammonia (NH 3 ), wherein hydrogen atoms are substituted by an aryl or alkyl group.

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