Synthesis of Tetracobalt Clusters from Dicobalt Alkyne Complexes

DOI: 10.1039/DT9950001805

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1805 - 1812 (1995)

Update date:2022-08-04

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Authors:

Jeffery, John C.

Pereira, Regina M. S.

Vargas, Maria D.

Went, Michael J.

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Article abstract of DOI:10.1039/DT9950001805

The room-temperature reactions of or with Ph2PCCPh (L) afford 1-L)> or 1-L)> and 1-L)2>, respectively, in which L is bound via the phosphine functionality.The structure of 1-L)2> has been established by X-ray crystallography and comprises two Co(CO)2(η¹-L) units bridged by a MeCCMe ligand.Reactions of 1CCR²)(CO)5(η¹-L)> with afford 1CCR²)(CO)5(μ-η¹:η²-L)Co2(CO)6> (R¹ = Ph, R² = H; R¹ = R² = Me), in which L is bound to the Co2(CO)6 unit via the alkyne functionality.Pyrolysis of 1:η²-L)Co2(CO)6> results in phosphorus-carbon bond cleavage and cobalt-cobalt and carbon-carbon bond formation to afford a butterfly cluster 4-η³-PhCCC(Me)=C(Me)C(O)>(μ-PPh2)(μ-CO)2(CO)6>, whose structure has been established by X-ray diffraction.

Full text of DOI:10.1039/DT9950001805

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