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Pyridine and aminide derivatives as ligands in 1 : 1 Rh 2 [tfa] 4 adducts: 1 H, 13 C and 15 N NMR study
Author(s) -
Jaźwiński Jarosław,
Duddeck Helmut
Publication year - 2003
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.1263
Subject(s) - chemistry , adduct , mesoionic , pyridine , chemical shift , nuclear magnetic resonance spectroscopy , stereochemistry , medicinal chemistry , organic chemistry
1 H, 13 C and 15 N chemical shifts of some pyridines and mesoionic oxatriazole aminides were recorded in the absence and presence of the complex dirhodium tetrakis(trifluoroacetate). The adduct formation shifts prove that the nitrogen atom in the pyridine derivatives and the N‐6 atom of the aminides are the binding sites in the adducts. At low temperature, adduct species can be identified separately by their individual signals. The 15 N chemical shift responds very sensitively even to small concentration changes in the adduct. Copyright © 2003 John Wiley & Sons, Ltd.