Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 4 (April 2013)


metal-organic compounds



dt3019 scheme

Acta Cryst. (2013). C69, 363-366    [ doi:10.1107/S0108270113005489 ]

Two complexes derived from the reaction of M3(CO)12 clusters (M = Ru, Os) with the 9-(triphenylphosphonio)fluorenide ylide: tricarbonyl[9-(triphenylphosphonio)fluorenylidene]ruthenium and nonacarbonyl-[mu]3-fluorenylidene-[mu]2-hydrido-triangulo-triosmium(III)

A. Arce, Y. De Sanctis, E. Galarza, M. T. Garland and R. Baggio

Abstract: Tricarbonyl[9-(triphenylphosphonio)fluorenylidene]ruthenium, [Ru(C31H21P)(CO)3], (I), is mononuclear, consisting of a single Ru centre, to which three carbonyl units and a chelating [mu]3-9-(triphenylphosphonio)fluorenide ylide bind to generate a distorted octahedral RuC6 core. Nonacarbonyl-[mu]3-fluorenylidene-[mu]2-hydrido-triangulo-triosmium(III), [Os3H(C13H7)(CO)9], (II), is trinuclear and presents a triangular triosmium core, nine carbonyl ligands and one fluorenylidene ligand. Two of the OsIII centres present a highly distorted hexacoordinated Os(Os2C4) core and are in turn bridged by a hydride ligand. The remaining OsIII cation is octacoordinated, with an Os(Os2C6) nucleus. The crystal structures of both compounds are the result of nondirectional forces, much resembling the packing of weakly interacting quasi-spherical units, viz. the molecules themselves in (I) and centrosymmetric [pi]-[pi]-bonded dimers in (II).

Formula: [Ru(C31H21P)(CO)3] and [Os3H(C13H7)(CO)9]


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