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An Unusual Bonding Situation in a Novel AuI-Phosphido Complex with a Planar Au3P3 Framework

Vogel, Ulf and Sekar, Perumal and Ahlrichs, Reinhart and Huniar, Uwe and Scheer, Manfred (2003) An Unusual Bonding Situation in a Novel AuI-Phosphido Complex with a Planar Au3P3 Framework. European Journal of Inorganic Chemistry 2003 (8), pp. 1518-1522.

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Abstract

Reaction of the mono-deprotonated derivative of [ ${Cp(CO)2Mo}$ 2(-PH2)(-H)] (1) leads to the novel complex [ ${Cp(CO)2Mo}$ 2(-H) ${3-P(H)Au(PPh3)}$ ] (2). In contrast the reaction of the analogous Cr derivative [ ${Cp(CO)2Cr}$ 2(-PH2)(-H)] (1a) leads under identical conditions to a planar Au3P3 cluster [ ${CpCr(CO)2}$ 6(P3Au3)] (3). Both complexes were completely structurally and spectroscopically characterised. Density functional calculations have shown that 3 is characterised by P-Cr-Au multicentre and Cr-P multiple bonding.