A Metal-Metal Bonded Dinuclear Ruthenium Ketene Complex
Resource
Journal of the Chinese Chemical Society 32 (3): 295-299
Journal
Journal of the Chinese Chemical Society
Journal Volume
32
Journal Issue
3
Pages
295-299
Date Issued
1985
Date
1985
Author(s)
Abstract
Abstract We report the synthesis of metal‐metal bonded dinuclear ruthenium ketene complex [CpRu(CO)] 2 (μ‐CH 2 CO)(μ‐CO), 3 , (Cp=η 5 ‐C 5 H 5 ) which contains the unique structural feature, of a μ‐η 2 (C,C) ketene group bridging two metal centers. Complex 3 is prepared by a rare intramolecular CO insertion to the methylene group of a Ru complex [CpRu(CO) 2 ] 2 (μ‐CH 2 ), 1 , in the absence of CO or any donor ligand. The cis and trans isomers of 3 originating from the arrangement of the Cp groups and the unsymmetrically bridging ketene group, are observed in the NMR spectra. Unlike a ketene complex without a metal‐metal bond [CpRu(CO) 2 ] 2 (μ‐CH 2 CO), 2 , complex 3 exhibits the chemistry of a ketene molecule and might be used as a stoichiometric ketene precusor in organic reactions.
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journal article
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