Crystal structure and catalytic properties of a platinum-iridium mixed cluster, [Pt2Ir2(μ-CO)3(CO)4(PPh3)3]

Bhaduri, Sumit ; Sharma, Krishna R. ; Clegg, William ; Sheldrick, George M. ; Stalke, Dietmar (1984) Crystal structure and catalytic properties of a platinum-iridium mixed cluster, [Pt2Ir2(μ-CO)3(CO)4(PPh3)3] Journal of the Chemical Society Dalton Transactions . pp. 2851-2853. ISSN 1472-7773

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Official URL: http://www.rsc.org/publishing/journals/DT/article....

Related URL: http://dx.doi.org/10.1039/DT9840002851

Abstract

The compound [Pt2Ir2(CO)7(PPh3)3] has been synthesised from [Pt12(CO)24]2- and [Ir(CO)Cl(PPh3)2]. A single-crystal X-ray structure determination (space group P1̅, Z= 2, R= 0.050 for 5 402 reflections) has shown that the metal atoms adopt a 'butterfly' configuration with the iridium and platinum atoms occupying 'hinge' and 'wing-tip' positions respectively. The mixed-metal cluster is an active catalyst for hydrogenation of olefins.

Item Type:Article
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