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15 N chemical shifts and one bond 15 N 1 H coupling constants in simple amides
Author(s) -
Marchal J. P.,
Canet D.
Publication year - 1981
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270150406
Subject(s) - amide , chemistry , substituent , intermolecular force , hydrogen bond , chemical shift , ring (chemistry) , coupling constant , nitrogen , solvent , crystallography , computational chemistry , stereochemistry , molecule , organic chemistry , physics , particle physics
An indirect method is employed for determining the 15 N parameters at the natural abundance level in a series of simple acyclic and cyclic amides. The one bond coupling constant, 1 J ( 15 N 1 H), and the 15 N chemical shift are measured as a function of the carbonyl substituent group or the ring size and the nature of the solvent (CCl 4 or H 2 O). These 15 N parameters are related to the amide bond structure, the nitrogen configuration and possible intermolecular hydrogen bonding (amide‐amide or amide‐water).