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The Synthesis, Reactivity, and Crystal and Molecular Structure of , an Unusual 50-Electron Closed Trinuclear Cluster Derivative of Rhodium

DOI: 10.1039/DT9830002229

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2229 - 2234 (1983)

Update date:2022-08-04

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Authors:

Haines, Raymond J.Haines, Raymond J.

Steen, Nick D. C. T.Steen, Nick D. C. T.

English, Robin B.English, Robin B.

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Article abstract of DOI:10.1039/DT9830002229

The reaction of <2> with PPh2H in benzene affords the mononuclear complex for a molar ratio of 1:4 and the trinuclear derivative , for a molar ratio of 1:2.The structure of the trinuclear derivative has been determined by X-ray crystallography.It crystallises in the monoclinic space group P21/n, with a=12.461(5), b=32.867(5), c=11.149(5) Angstroem, β=99.29(1) deg, Z=4, and R=0.085.The metal atoms adopt a triangular configuration with each edge of the triangle being bridged by a diphenylphosphido-group as well as by either a chloro or a carbonyl group.In spite of this compound beign a 50-electron system, all of the Rh-Rh distances correspond with those normally associated with a formal rhodium-rhodium bond.The chloro-groups in this compound can be extracted as radicals by the addition of NEt2H, affording, in the presence of CO, , or displaced as chloride ions by treatment of the complex with AgSbF6; the former reaction is a reversible process with dissolution of in CCl4 resulting in the regeneration of the title complex. is only moderately stable in solution and converts slowly to an insoluble species formulated as <n>.

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Product name:Rh(2+)*P(C6H5)2(1-)*Cl(1-)*CO=Rh(P(C6H5)2)Cl(CO)

Cas No:88474-43-5

88474-43-5

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