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

Yun Chi; John R. Shapley

doi:10.1021/om00129a040

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

Yun Chi, John R. Shapley

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

68 Citations (Scopus)

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).

Original language	English
Pages (from-to)	1900-1901
Journal	Organometallics
Volume	4
Issue number	10
DOIs	https://doi.org/10.1021/om00129a040
Publication status	Published - 1 Oct 1985
Externally published	Yes

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@article{bf89a5f1dd6743a3872fa1825ee4ea4f,

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

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).",

author = "Yun Chi and Shapley, {John R.}",

year = "1985",

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doi = "10.1021/om00129a040",

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TY - JOUR

T1 - Reversible Alkyne Ligand Scission

T2 - Formation and Reactivity of Cp2W2Os(Co)5(μ-CTol)(μ3-CTol)

AU - Chi, Yun

AU - Shapley, John R.

PY - 1985/10/1

Y1 - 1985/10/1

N2 - 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).

AB - 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).

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U2 - 10.1021/om00129a040

DO - 10.1021/om00129a040

M3 - RGC 21 - Publication in refereed journal

SN - 0276-7333

VL - 4

SP - 1900

EP - 1901

JO - Organometallics

JF - Organometallics

IS - 10

ER -