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Multinuclear magnetic resonance study of some mesoionic 1,3‐diphenyltetrazoles with various exocyclic groups
Author(s) -
Bocian Wojciech,
Jaźwiński Jaroslaw,
Koźmiński Wiktor,
Stefaniak Lech,
Webb Graham A.
Publication year - 1994
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260320505
Subject(s) - mesoionic , chemistry , nitrogen atom , ring (chemistry) , nitrogen , nuclear magnetic resonance spectroscopy , crystallography , stereochemistry , carbon 13 nmr , group (periodic table) , proton nmr , computational chemistry , nuclear magnetic resonance , medicinal chemistry , organic chemistry , physics
1 H, 13 C, 14 N and 15 N NMR methods were applied to the study of some Type A mesoionic 1,3‐diphenyltetrazoles with various exocyclic groups. The ring structures of these tetrazoles are confirmed by the nitrogen NMR data. The shielding of N‐4 increases consecutively by amounts of ca 10 ppm as the bonded exocyclic atom changes from S to C to O.