Browsing by Author "ALEGRIA, S"

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    BIS(DIPHENYLPHOSPHINO)METHANE AND ITS SULFIDE OR SELENIDE DERIVATIVES AS LIGANDS IN RUTHENIUM(II) AND RHODIUM(III) COMPLEXES - CRYSTAL-STRUCTURE OF [(ETA(6)C(6)ME(6))RU(ETA(3)(SPPH(2))(2)CH)]CLO4
    (1995) VALDERRAMA, M; CONTRERAS, R; BASCUNAN, M; ALEGRIA, S; BOYS, D
    Reaction of complexes [(eta(6)C(6)Me(6))RuCl2](2) and [(eta(5)C(5)Me(5))RhCl2](2) with the ligands L = Ph(2)PCH(2)PPh(2) (dppm) or Ph(2)PCH(2)P(Se)Ph(2) in benzene solutions led to neutral complexes with the general formula [(ring)MCl(2)(eta(1)L)]. The reactivity of the uncoordinated P atom of dppm has been studied. When the reaction was carried out in methanol solutions, cationic complexes, with the ligands acting in their bidentate form, were obtained. Similar cationic perchlorate complexes were prepared using acetone as solvent in the presence of sodium perchlorate, yielding [(ring)MCl(eta(2)L)]ClO4, where L = Ph(2)PCH(2)PPh(2), Ph(2)PCH(2)P(Se)Ph(2) or Ph(2)P(S)CH2P(S)Ph(2). The complex [(eta(6)C(6)Me(6))RuCl{eta(2)(SPPh)(2) CH2-S,S'}]ClO4 reacted with sodium hydride in tetrahydrofuran or thallium pyrazolate in dichloromethane solution by deprotonation of the coordinated bidentate ligand giving the complex [(eta(6)C(6)Me(6))Ru{eta(3)(SPPh(2))(2)CH-C,S,S'}]ClO4. The structure of this complex has been determined by single crystal X-ray diffraction methods. The complex contains a tridentate C,S,S'-bonded ligand occupying three coordination positions of a distorted octahedral ruthenium centre, with an eta(6)C(6)Me(6) group completing the coordination sphere.