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The synthesis and characterisation of a number of group nine complexes containing the recently reported ligand, diphenyl-2-(3-methyl)indolylphosphine, is presented herein. The complexes [RhCl(COD){PPh2(C9H8N)}] (1), [IrCl(COD){PPh2(C9H8N)}] (2), [RhCl(NBD){PPh2(C9H8N)}] (3) and [Rh(COD)(MeCN){PPh2(C9H8N)}]BF4(4) (where COD = 1,5-cyclooctadiene, NBD = 2,5- norbornadiene) have been structurally characterised by X-ray crystallography. The complex [Rh2(COD)2{N(Me)C(H)Ph)}{PPh2(C9H8N)}][BF4]2(8) was also isolated and structurally characterised. Complex 8contains a ‘[Rh(COD)]’ fragment coordinated to the aromatic ring of the indolyl group, providing the first example of a η6coordination mode for this ligand. The synthesised complexes were investigated for their activity in the catalytic transfer hydrogenation of ketones and found to be moderately active catalysts. [ABSTRACT FROM AUTHOR]

The reaction of Ir(COD)(Tai) [where Tai={HB(7-azaindoyl)3}-] with carbon monoxide results, via a sequence of hydride migration and insertion steps, in the formation of the first complexes to contain a metal-to-boron dative interaction supported by 7-azaindole units. [ABSTRACT FROM AUTHOR]

An unusual ruthenium(II) complex frozen at an intermediate point of hydride transfer between boron and ruthenium centres is reported. [ABSTRACT FROM AUTHOR]

Abstract: A structural comparison of the coordination chemistry of the two linkage isomeric forms of bis(1-methylthioimidazolyl)methane, [H2C(N-mt)2] (L S ), and [H2C(S-mt)2] (L N ) to a number of zinc complexes has been carried out. The complexes ZnX2 L S and ZnX2 L N (where X=Cl, Br and I) have all been prepared in good to high yields and have been characterised by spectroscopic and analytical methods. X-ray crystallography studies were also carried out on all of the newly prepared compounds, revealing κ2-SS and κ2-NN coordination modes for L S and L N containing complexes, respectively. [ABSTRACT FROM AUTHOR]