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

Sumit Bhaduri; Krishna Sharma; W. Clegg; In Memory: G.M. Sheldrick (1942–2025); Dietmar Stalke

doi:10.1039/dt9840002851

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In Memory: G.M. Sheldrick (1942–2025)

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: 2851-2853

Article 1984 English

Authors

SB
Sumit Bhaduri
KS
Krishna Sharma
WC
W. Clegg

Abstract

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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 P, 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.

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Crystal structure and catalytic properties of a platinum–iridium mixed cluster, [Pt<sub>2</sub>Ir<sub>2</sub>(µ-CO)<sub>3</sub>(CO)<sub>4</sub>(PPh<sub>3</sub>)<sub>3</sub>]

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