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Organometallic compounds with metal—metal bonds

1975; Elsevier BV; Volume: 92; Issue: 1 Linguagem: Inglês

10.1016/s0022-328x(00)91108-2

1872-8561

Pierre Braunstein, J. Dehand, J. F. NENNIG,

Asymmetric Hydrogenation and Catalysis

Two new heteronuclear tetrametallic complexes (CO)5Co2(CO)2Pt2(CO) (PPh3)2 (I), (η-C5H5)2(CO)2Mo2(CO)4Pt2(PPh3)2 (II) and a new homonuclear trimetallic complex Pt3(CO)2(PPH3)4 (III) have been synthesised by reaction between carbonylmetallate anions NA[(Co(CO)4] or Na[(π-C5H5)Mo(CO)3] and cis- or trans-PtCl2(PPh3)2. The compounds were characterised by analysis and IR spectroscopy. On the basis of preliminary X-ray results, I and II appear to have a tetrahedral arrangement of the metallic atoms in a “butterfly”-type structure.