Stepwise synthesis of [Os3(CO)8(R2C2)(R′2C2)] from [Os3(CO)10(R2C2)] under mild conditions, x-ray crystal structure of [Os3(CO)8(Ph2C2)2]; a bis(alkyne) without an osmacyclopentaidiene ring

Brian F. G. Johnson; Rajesh Khattar; Fernando J. Lahoz; Jack Lewis; Paul R. Raithby

doi:10.1016/S0022-328X(00)99617-7

Stepwise synthesis of [Os₃(CO)₈(R₂C₂)(R′₂C₂)] from [Os₃(CO)₁₀(R₂C₂)] under mild conditions, x-ray crystal structure of [Os₃(CO)₈(Ph₂C₂)₂]; a bis(alkyne) without an osmacyclopentaidiene ring

Brian F. G. Johnson, Rajesh Khattar, Fernando J. Lahoz, Jack Lewis, Paul R. Raithby

University of Cambridge

Research output: Contribution to journal › Article › peer-review

Abstract

Treatment of a solution of [Os₃(CO)₁₀(R₂C₂)] (R = Me (1, R = Ph (2)) in CH₂Cl₂ with Me₃No/MeCN in the presence of R′₂C₂ affords the new organometallic cluster [Os₃(CO)₈(R₂C₂)(R′₂C₂)] (R = R′ = Me (3), R = R′ = Ph (4) and R = Ph, R′ = Me (5)). A single crystal X-ray analysis of compound 4 has established a triangular metal framework with both the alkyne units coordinated in a μ₃-η²-{norm of matrix}-mode. In toluene, at 80°C, compound 4 undergoes rearrangement to the known compound, [Os₃H(CO)₈(Ph)C₂(C₆H₄))] (6) in which CC bond formation has occurred to produce an osmacyclopentadiene ring.

Original language	English
Pages (from-to)	C51-C57
Journal	Journal of Organometallic Chemistry
Volume	319
Issue number	3
DOIs	https://doi.org/10.1016/S0022-328X(00)99617-7
Publication status	Published - 27 Jan 1987

Funding

We thank the Nehru Trust (India), the Cambridge Commonwealth Trust, and the Committee of Vice-Chancellors for financial support (to RK), Ministerio de Educa-cion y Ciencia for a grant (to FJL), and Johnson Matthey and Co. for the generous loan of oso,.

Funders	Funder number
UK committee of Vice Chancellors and Principals
Johnson Matthey and Co.
Nehru Trust (India)
Cambridge Commonwealth Trust
Ministerio de Ciencia Tecnología y Telecomunicaciones

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/S0022-328X(00)99617-7

Cite this

Johnson, B. F. G., Khattar, R., Lahoz, F. J., Lewis, J., & Raithby, P. R. (1987). Stepwise synthesis of [Os₃(CO)₈(R₂C₂)(R′₂C₂)] from [Os₃(CO)₁₀(R₂C₂)] under mild conditions, x-ray crystal structure of [Os₃(CO)₈(Ph₂C₂)₂]; a bis(alkyne) without an osmacyclopentaidiene ring. Journal of Organometallic Chemistry, 319(3), C51-C57. https://doi.org/10.1016/S0022-328X(00)99617-7

Stepwise synthesis of [Os₃(CO)₈(R₂C₂)(R′₂C₂)] from [Os₃(CO)₁₀(R₂C₂)] under mild conditions, x-ray crystal structure of [Os₃(CO)₈(Ph₂C₂)₂]; a bis(alkyne) without an osmacyclopentaidiene ring. / Johnson, Brian F. G.; Khattar, Rajesh; Lahoz, Fernando J. et al.
In: Journal of Organometallic Chemistry, Vol. 319, No. 3, 27.01.1987, p. C51-C57.

Research output: Contribution to journal › Article › peer-review

Johnson, BFG, Khattar, R, Lahoz, FJ, Lewis, J & Raithby, PR 1987, 'Stepwise synthesis of [Os₃(CO)₈(R₂C₂)(R′₂C₂)] from [Os₃(CO)₁₀(R₂C₂)] under mild conditions, x-ray crystal structure of [Os₃(CO)₈(Ph₂C₂)₂]; a bis(alkyne) without an osmacyclopentaidiene ring', Journal of Organometallic Chemistry, vol. 319, no. 3, pp. C51-C57. https://doi.org/10.1016/S0022-328X(00)99617-7

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title = "Stepwise synthesis of [Os3(CO)8(R2C2)(R′2C2)] from [Os3(CO)10(R2C2)] under mild conditions, x-ray crystal structure of [Os3(CO)8(Ph2C2)2]; a bis(alkyne) without an osmacyclopentaidiene ring",

abstract = "Treatment of a solution of [Os3(CO)10(R2C2)] (R = Me (1, R = Ph (2)) in CH2Cl2 with Me3No/MeCN in the presence of R′2C2 affords the new organometallic cluster [Os3(CO)8(R2C2)(R′2C2)] (R = R′ = Me (3), R = R′ = Ph (4) and R = Ph, R′ = Me (5)). A single crystal X-ray analysis of compound 4 has established a triangular metal framework with both the alkyne units coordinated in a μ3-η2-\{norm of matrix\}-mode. In toluene, at 80°C, compound 4 undergoes rearrangement to the known compound, [Os3H(CO)8(Ph)C2(C6H4))] (6) in which CC bond formation has occurred to produce an osmacyclopentadiene ring.",

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N2 - Treatment of a solution of [Os3(CO)10(R2C2)] (R = Me (1, R = Ph (2)) in CH2Cl2 with Me3No/MeCN in the presence of R′2C2 affords the new organometallic cluster [Os3(CO)8(R2C2)(R′2C2)] (R = R′ = Me (3), R = R′ = Ph (4) and R = Ph, R′ = Me (5)). A single crystal X-ray analysis of compound 4 has established a triangular metal framework with both the alkyne units coordinated in a μ3-η2-{norm of matrix}-mode. In toluene, at 80°C, compound 4 undergoes rearrangement to the known compound, [Os3H(CO)8(Ph)C2(C6H4))] (6) in which CC bond formation has occurred to produce an osmacyclopentadiene ring.

AB - Treatment of a solution of [Os3(CO)10(R2C2)] (R = Me (1, R = Ph (2)) in CH2Cl2 with Me3No/MeCN in the presence of R′2C2 affords the new organometallic cluster [Os3(CO)8(R2C2)(R′2C2)] (R = R′ = Me (3), R = R′ = Ph (4) and R = Ph, R′ = Me (5)). A single crystal X-ray analysis of compound 4 has established a triangular metal framework with both the alkyne units coordinated in a μ3-η2-{norm of matrix}-mode. In toluene, at 80°C, compound 4 undergoes rearrangement to the known compound, [Os3H(CO)8(Ph)C2(C6H4))] (6) in which CC bond formation has occurred to produce an osmacyclopentadiene ring.

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