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13 C, 13 C coupling constants from a mixture of isotopomers ( 13 C) of substituted aromatic compounds; 1‐nitronaphthalenes
Author(s) -
Hansen Poul Erik,
Albrand JeanPierre
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.1270170115
Subject(s) - homonuclear molecule , electronegativity , substituent , chemistry , isotopomers , coupling constant , carbon 13 , medicinal chemistry , organic chemistry , molecule , physics , particle physics , quantum mechanics
13 C Homonuclear decoupling experiments led to the assignment of the carbon‐carbon coupling constants of 13 C‐enriched 1‐nitronaphthalene obtained by nitration of [1‐ 13 C]naphthalene. The effects of substituents on coupling constants can be explained on the basis of the electronegativity of the first atom of the substituent, and the observed substituent effects are shown to be parallel to previous data for oxygen containing substituents.