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The 13 C NMR spectra and structure of 2,1,3‐benzoxadiazole,‐benzothiadiazole and ‐benzoselenadiazole
Author(s) -
Cheeseman G. W. H.,
Turner C. J.
Publication year - 1974
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.1270060806
Subject(s) - chemical shift , ring (chemistry) , solvent , coupling constant , chemistry , carbon 13 nmr , nmr spectra database , spectral line , carbon fibers , hydrogen bond , crystallography , molecule , stereochemistry , organic chemistry , materials science , physics , particle physics , astronomy , composite number , composite material
The 13 C NMR chemical shifts and one‐bond carbon–hydrogen coupling constants have been obtained for the title compounds in carbon disulphide as solvent. There appears to be little solvent effect on the 13 C chemical shifts. The results suggest the order of release of electrons into the ring is O ≫ S > Se.