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14N nuclear quadrupole resonance in N-acetyl amino acids

✍ Scribed by G. F. Sadiq; S. G. Greenbaum; P. J. Bray

Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 295 KB
Volume: 17
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270170312

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✦ Synopsis

Abstract

^14^N Nuclear quadrupole resonance (NQR) spectra of several N‐acetyl amino acids and related compounds are reported and analyzed within the framework of the Townes and Dailey theory. The inductive effect of the chloroacetyl group on the nitrogen is discussed. A positive correlation between the π‐σ~NC~ electron density at the nitrogen and the Taft inductive parameter σ* is observed, suggesting that the nitrogen π‐charge density in the N‐acetyl amino acids does not vary appreciably. NQR data for hippuric acid are compared to the ^14^N quadrupole parameters extracted from ENDOR data reported for X‐irradiated hippuric acid.

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