Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 4 (April 2013)


metal-organic compounds



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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