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Cluster Chemistry. Part 92. Directed Syntheses and Crystal Structures of C2>>*CH2Cl2, (μ-PPh2C2C2)> and (μ-PPh2)(μ-CO)2(CO)14>*CH2Cl2

DOI: 10.1039/DT9930003313

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 3313 - 3322 (1993)

Update date:2022-08-04

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Authors:

Adams, Chris J.Adams, Chris J.

Bruce, Michael I.Bruce, Michael I.

Horn, ErnstHorn, Ernst

Skelton, Brian W.Skelton, Brian W.

Tiekink, Edward R. T.Tiekink, Edward R. T.

White, Allan H.White, Allan H.

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Article abstract of DOI:10.1039/DT9930003313

Reactions of with <n(CO)11>2(μ-bdpp)> n = Ru3, Os3, Re3(μ-H)3, or Ru4(μ-H)4; bdpp = PPh2C2C2PPh2> afforded <n(CO)11>2<μ-PPh2C2PPh2>> n = Ru3 1, Os3 2, Re3(μ-H)3 or Ru4(μ-H)4 4> in which the Co2(CO)6 moiety bonds to one of the CC triple bonds of the bridging bdpp ligand.Pyrolysis of 1 yielded <<μ-PPh2C2>> 5, which is formed by concomitant addition of a P-C(sp) bond to one Ru3 cluster and elimination of a Ru(CO)4 fragment.In <<μ-PPh2C2C2)> 8, obtained by heating 2, the Co2Os3 cluster consists of three edge-sharing triangles; the C2 fragment interacts with all five metal atoms.Reaction of the mixed-metal complex <(μ-bdpp) 10 with yielded a 1:1 isomeric mixture of <<μ-PPh2C2PPh2>> 11a and <<μ-PPh2C2PPh2>> 11b.Pyrolysis of 11a afforded (μ-PPh2)(μ-CO)2(CO)14> 12 in which all three transition metals form a cluster about the C4P fragment of the original bdpp ligand, which has also added one H atom to the carbon adjacent to the PPh2 group.The second PPh2 group bridges an Os-Os bond.Molecular structures of 5, 8 and 12 were determined by X-ray crystallography.

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Product name:(Ru3(CO)11)2(μ-PPh2{C2Co2(CO)6}C2PPh2)

Cas No:154035-00-4

154035-00-4

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