Abstract

The reaction of Na 2 [Fe(CO) 4 ] with cis-PtCl 2 L 2 (L = PEt 3 , PPh 3 , P(p-Tol) 3 , PMe 2 Ph) in THF yields cluster complexes of nuclearities 3, 5, and 6, and the new hexanuclear heterometallic cluster FePt 5 (μ-CO) 4 (CO) 5 (PEt 3 ) 4 (1) has been shown by X-ray analysis to possess an unprecedented geometry. The structure of 1 may be regarded as a Pt 4 tetrahedron sharing an edge with a FePt 3 lozenge in such a way that the metal core is unusually open (noncompact) for a six-atom cluster

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