摘要 : Reaction Of RuCl2(PPh3)(3) with N-Phenyl-pyridine-2-carbaldehyde thiosemicarbazone (C5H4N-C-2(H)=N-3-(NH)-H-2-C-1(=S)(NHC6H5)-H-1, Hpytsc-NPh) in presence of Et3N base led to loss of -(NH)-H-2-proton and yielded the complex [Ru(py... 展开 Reaction Of RuCl2(PPh3)(3) with N-Phenyl-pyridine-2-carbaldehyde thiosemicarbazone (C5H4N-C-2(H)=N-3-(NH)-H-2-C-1(=S)(NHC6H5)-H-1, Hpytsc-NPh) in presence of Et3N base led to loss of -(NH)-H-2-proton and yielded the complex [Ru(pytsc-NPh)(2)(Pb3P)(2)] (1) Similar reactions of precursor RuCl2[(p-tolyl)(3)P](3) with a series of thiosemicarbazone ligands, viz. pyridine-2-carbaldehyde thiosemicarbazone (Hpytsc), salicylaldehyde thiosemicarbazone (H(2)stsc), and benzaldehyde thiosemicarbazone (Hbtsc), have yielded the complexes, [Ru(pytsc)(2){(p-tolyl)(3)P}(2)] (2), [Ru(Hstsc)(2){(p-tolyl)(3)P}](2) (3), and [Ru(btsc)(2){(p-tolyl)(3)P}(2)] (4), respectively The reactions of precursor Ru2Cl4(dppb)(3) {dppb = Ph2P-(CH2)(4)-PPh2} with H(2)stsc, Hbtsc, furan-2-carbaldehyde thiosemicarbazone (Hftsc) and thiophene-2-carbaldehyde thiosemicarbazone (Httsc) have formed complexes of the composition, [Ru(Hstsc)(2)(dppb)] (5), [Ru(btsc)(2)(dppb)] (6), [Ru(ftsc)(2)(dppb)] (7), and [Ru(ttsc)(2)(dppb)] (8). The complexes have been characterized by analytical data, IR, NMR (H-1, P-31) spectroscopy and X-ray crystallography (1 and 5). The proton NMR confirmed loss of -(NH)-H-2- proton in all the compounds, and P-31 NMR spectra reveal the presence of equivalent phosphorus atoms in the complexes. In all the compounds, thiosemicarbazone ligands coordinate to the Ru-II atom via hydrazinic nitrogen (N-2) and sulfur atoms. The arrangement around each metal atom is distorted octahedral with cis: cis: trans P, P: N, N: S, S dispositions of donor atorns. 收起