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13 C and 15 N NMR chemical shifts of 1‐(2′,4′‐dinitrophenyl) and 1‐(2′,4′,6′‐trinitrophenyl) pyrazoles in the solid state and in solution
Author(s) -
Ángeles García M.,
Claramunt Rosa M.,
Elguero José
Publication year - 2008
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.2219
Subject(s) - chemistry , dinitrophenyl , chemical shift , aryl , nmr spectra database , solid state , carbon 13 nmr , spectral line , stereochemistry , crystallography , computational chemistry , organic chemistry , alkyl , antibody , immunology , biology , physics , astronomy
The 13 C and 15 N CPMAS NMR spectra of 18 pyrazoles substituted at position 1 by dinitrophenyl and trinitrophenyl (picryl) groups have been recorded. To help in the assignments, some of these compounds were studied in DMSO‐ d 6 solution. Phenomena such as the conformation of the N ‐aryl groups and broadening of splittings due to quadrupolar nuclei are discussed. Copyright © 2008 John Wiley & Sons, Ltd.