A comparison of NH3, PH3, PH2, OH2 and SH as ligands in iridium(III) complexes
摘要:
The aqua complex trans,mer-[IrCl2(H2O)(PMe2Ph)3][ClO4] of known crystal structure contains a highly labile H2O ligand which is readily substituted. The corresponding ammonia and phosphine complexes trans,mer-[IrCl2(EH3)(PMe2Ph)3][ClO4] (E = N or P), synthesised from the aqua complex, are inert and have been structurally characterised and compared with the aqua species. The cationic complex containing PH3 is readily deprotonated, but not the one with NH3, to give the structurally characterised neutral complex trans,mer- [IrCl2(PH2)(PMe2Ph)3]. The Ir-PH3 bond is significantly shorter than the Ir-PH2 bond and there are clear conformational changes resulting from deprotonation. Replacement of H2O by H2S leads to spontaneous deprotonation and formation of trans,mer-[IrCl2(SH)(PMe2Ph)3] (crystal structure also reported). Analysis of the geometries of trans,mer-[IrCl2L(PMe2Ph)3][ClO4] (L = H2O, NH3 or PH3) and of trans,mer-[IrCl2X(PMe2Ph)3] (X = H, Cl, SH or PH2) has allowed the properties of these ligands, in particular their trans influences, to be assessed.
Characterisation of three isomers of trans-[IrCl2(EMe2Ph)4]ClO4(E = P or As) each containing adjacent parallel phenyl rings
作者:Antony J. Deeming、Simon Doherty、Jane E. Marshall、Nicholas I. Powell
DOI:10.1039/c39890001351
日期:——
The major of threeisomers of trans-[IrCI2(EMe2Ph)4]CIO4(E = P or As), identified by their low temperature 31P1H}, 13C1H}, and 1H n.m.r. spectra, corresponds to that found in the crystal (E = P) and eachcontainsadjacent and parallelphenylrings leading to 1H n.m.r. (phenyl) resonances as high-field as δ 5.7.
反式-[IrCI 2(EMe 2 Ph)4 ] CIO 4(E = P或As)的三种异构体中的主要异构体,由其低温31 P 1 H},13 C 1 H}和1 H鉴定nmr光谱,对应于晶体中的光谱(E = P),每个光谱均包含相邻且平行的苯环,导致1 H nmr(苯基)共振,其高场为δ5.7。
Synthesis, structure and spectroscopy of heterometallic compounds containing linear AuCNM, AuNCM and MNCAuCNM chains of atoms (M = Rh OR Ir): Crystal structure of I{PMe2Ph)3Cl2Rh(μ-NC)}2Au][ClO4]·2CH2Cl2
作者:Antony J. Deeming、Graeme P. Proud、Helen M. Dawes、Michael B. Hursthouse
DOI:10.1016/s0277-5387(00)80374-5
日期:1988.1
Deeming, Anthony J.; Proud, Graeme P.; Dawes, Helen M., Journal of the Chemical Society, Dalton Transactions, 1986, p. 2545 - 2550
作者:Deeming, Anthony J.、Proud, Graeme P.、Dawes, Helen M.、Hursthouse, Michael B.
DOI:——
日期:——
Deeming, Antony J.; Proud, Graeme P.; Dawes, Helen M., Journal of the Chemical Society, Dalton Transactions, 1988, p. 2475 - 2482
作者:Deeming, Antony J.、Proud, Graeme P.、Dawes, Helen M.、Hursthouse, Michael B.