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14N NQR study of nicotinamide and related compounds

✍ Scribed by J. Seliger; V. Žagar

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
184 KB
Volume
46
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^14^N nuclear quadrupole resonance (NQR) frequencies have been measured in picolinamide, nicotinamide, isonicotinamide, 2,6‐pyridine dicarboxamide, and acetamide by double resonance. The ^14^N NQR spectra in picolinamide, nicotinamide, isonicotinamide, and 2,6‐pyridine dicarboxamide show the presence of two distinct nitrogen positions: the ring position with the quadrupole coupling constant about 4,5 MHz and the amide position with the quadrupole coupling constant about 2.6 MHz. The NQR data are related to the structure of the investigated compounds and to the NH···O hydrogen bonds. Copyright © 2007 John Wiley & Sons, Ltd.

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