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Ligand‐Induced Hydrogen Scrambling and Interligand Carbon – Carbon Bond Formation in the Gas‐Phase Reactions of MCH 3 + (MFe, Co) with 1‐Octyne and 1‐Octene
Author(s) -
Schwarz Josef,
Schwarz Helmut
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931260529
Subject(s) - chemistry , ligand (biochemistry) , alkene , hydrogen , scrambling , hydrogen bond , crystallography , metal , stereochemistry , carbon fibers , carbon monoxide , molecule , catalysis , organic chemistry , biochemistry , receptor , linguistics , philosophy , materials science , composite number , composite material
Abstract Evidence is presented that the encounter complexes of MCX 3 + (MFe, Co; XH, D) with 1‐octyne, prior to C – H‐and C – C bond activation, undergo inter ligand C – C bond coupling as well as extensive hydrogen exchange. In distinct contrast, in the related complexes formed by gas‐phase reaction of MCX 3 + (MFe, Co; XH, D) with 1‐octene, the metal‐methyl group retains its identity while the alkene ligand is subject to extensive hydrogen scrambling presumably by β1‐hydrogen shift to and from the metal centers.