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Multinuclear Magnetic Resonance Study of Some Mesoionic 1,2,3‐Triazoles and Related Compounds
Author(s) -
Bocian Wojciech,
Wiench Jerzy W.,
Stefaniak Lech,
Webb Graham A.
Publication year - 1996
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/(sici)1097-458x(199606)34:6<453::aid-omr884>3.0.co;2-z
Subject(s) - mesoionic , chemistry , protonation , nitrogen atom , nuclear magnetic resonance spectroscopy , carbon 13 nmr , nitrogen , proton nmr , computational chemistry , crystallography , nuclear magnetic resonance , stereochemistry , organic chemistry , ion , physics , group (periodic table)
1 H, 13 C, 14 N and 15 N NMR results are reported for some mesoionic 1,2,3‐triazoles and related compounds. It is demonstrated that 14 N NMR linewidths are dependent on the charge present on the nitrogen atom. In addition, it is shown that nitrogen NMR is of great value in the determination of the site of protonation, the ability to distinguish readily between mesoionic cyclic and non‐cyclic structures and to follow the transformation between such structures.