117477-34-6Relevant academic research and scientific papers
Dinuclear Complexes of Rhodium and Iridium with Cyanide or Thiocyanate Bridges: Molecular Structure of
Deeming, Antony J.,Proud, Graeme P.,Dawes, Helen M.,Hursthouse, Michael B.
, p. 2475 - 2482 (2007/10/02)
Reactions of the rhodium or iridium complexes with give the homometallic cyano-bridged compounds (M = M' = Rh or Ir) and the corresponding heterometallic isomers which do not interconvert.The crystal structure of the complex revealed that the two IrCl2(PMe2Ph)3 groups are symmetry related because there is a disordered distribution of IrCNIr and IrNCIr orientations.Hence, though the structure is well refined (R = 0.035), the different structural influences of the C and N atoms in the bridge could not be defined.However, 13C, 15N, and 31P n. m. r. studies reveal that the trans influence of C is greater than that of the N atom.The corresponding homometallic compounds (ClO4> (M = Rh or Ir) were obtained but attempted synthesis of the mixed Rh/Ir compounds led to a mixture of all four possible homo- and hetero-metallic species.We conclude that the thiocyanato bridges can cleave to give both S- and N-bonded mononuclear species but N-bonded cyanide monomers are inaccessible.
