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1 H and 13 C n.m.r. study of butatriene‐ bis ‐tricarbonyliron complexes. Assignment of geometric orientation by comparative J (CCCH) values
Author(s) -
Victor Rae,
Ringel Israel
Publication year - 1978
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.1270110108
Subject(s) - chemistry , stereochemistry , spectroscopy , medicinal chemistry , crystallography , physics , quantum mechanics
A number of substituted butatriene‐ bis ‐tricarbonyliron complexes have been studied by 13 C and 1 H n.m.r. spectroscopy. Long range coupling values, J (CCCH), have confirmed chemical shift results that methyl and phenyl groups assume opposite orientations at the coordinated double bonds with the methyl group preferentially trans to carbon and the phenyl group preferentially trans to iron.