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Issue 11, 1982
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Synthesis and molecular structure of [Au4Cl8], and the isolation of [Pt(CO)Cl5] in thionyl chloride

Abstract

A high-yield synthesis of [Au4Cl8] by treatment of [Au2Cl6] with the stoicheiometric amount of CO in COCl2 is described. The crystal and molecular structure of the tetranuclear compound has been solved by X-ray diffraction methods. It is triclinic, space group P[1 with combining macron], with a = 7.015(4), b= 6.830(2), c= 6.684(4)Å, α= 94.4(1), β= 107.5(1), γ= 88.4(1)°, and Z= 1, and has been refined to R= 0.11 for 989 ‘ observed ’ reflections. The structure consists of discrete [Au4Cl8] molecules with square-planar gold(III) and almost linear gold(I) centres in a chair-like arrangement. The solid compound has a high reactivity towards CO. The platinum(IV) derivative [Pt(CO)Cl5] has been isolated in SOCl2 from the reaction of [Pt(CO)Cl3] with chlorine.

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Article type: Paper
DOI: 10.1039/DT9820002257
Citation: J. Chem. Soc., Dalton Trans., 1982,0, 2257-2260
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    Synthesis and molecular structure of [Au4Cl8], and the isolation of [Pt(CO)Cl5] in thionyl chloride

    D. B. Dell'Amico, F. Calderazzo, F. Marchetti and S. Merlino, J. Chem. Soc., Dalton Trans., 1982, 0, 2257
    DOI: 10.1039/DT9820002257

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