Issue 18, 1992

ESR spectroscopic characterisation of a coordinated alkyne radical, and redox-induced vinylidene–alkyne complex isomerisation

Abstract

One-electron oxidation of [Cr(CO)2(RC2R)(η-C6Me6)]1 gives paramagnetic [Cr(CO)2(RC2R)(η-C6Me6)]+1+ in which the unpaired electron in highly delocalised onto the alkyne; the radical cation (1+; R = SiMe3) is an intermediate in the oxidative isomerisation of the vinylidene complex [Cr(CO)2{C[double bond, length half m-dash]C(SiMe3)2}(η-C6Me6)]2 to [Cr(CO)2(Me3SiC2SiMe3)(η-C6Me6)](1; R = SiMe3).

Article information

Article type
Paper

J. Chem. Soc., Chem. Commun., 1992, 1293-1295

ESR spectroscopic characterisation of a coordinated alkyne radical, and redox-induced vinylidene–alkyne complex isomerisation

N. G. Connelly, A. G. Orpen, A. L. Rieger, P. H. Rieger, C. J. Scott and G. M. Rosair, J. Chem. Soc., Chem. Commun., 1992, 1293 DOI: 10.1039/C39920001293

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