Reversible Alkyne Ligand Scission : Formation and Reactivity of Cp2W2Os(Co)5(μ-CTol)(μ3-CTol)

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Original languageEnglish
Pages (from-to)1900-1901
Journal / PublicationOrganometallics
Volume4
Issue number10
Publication statusPublished - 1 Oct 1985
Externally publishedYes

Abstract

Decarbonylation of Cp2W2Os(CO)7(μ3-η2-C2Tol2) (1) in refluxing methylcyclohexane induces cleavage of the alkyne C-C bond, giving Cp2W2Os(CO)5(μ-CTol)(μ3-CTol)(2). This transformation is reversed upon exposure to CO (1 atm, 25 °C, 5 min), but reaction with H2 (1 atm, 101 °C, 15 min) provides Cp2W2Os(CO)4(μ-CTol)(μ3-CTol)(μ-H)H(4). Treatment of 4 with CCI4 gives Cp2W2Os(Co)4(μ-CTol)(μ3-CTol)(μ-H)Cl (5).