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The High Nuclearity Mixed–Metal Cluster Dianions [Ru 8 H 2 Cu 7 Cl 3 (CO) 24 ] 2− and [Ru 12 H 2 Cu 6 Cl 2 (CO) 34 ] 2−

1997; Volume: 36; Issue: 3 Linguagem: Inglês

10.1002/anie.199702911

0570-0833

Michael A. Beswick, Jack Lewis, Paul R. Raithby, Carmen Ramı́rez de Arellano,

Inorganic Chemistry and Materials

A linear arrangement of condensed octahedra and fused square-based pyramids are present in the novel, high nuclearity, mixed-metal dianions of the title (2 and 1, respectively), which are formed in the rection of [Ru6H(CO)18]− with excess [Cu(MeCN)4]+ in the presence of chloride ions in CH2Cl2 (1) and CH3CN (2). In these dianions the metallic ruthenium cluster cores are fused together through a central copper cluster unit (metal cores of (1 (left) and 2 (right) are depicted below).