Synthesis, photophysics and photochemistry of alkynylgold(I) phosphine complexes

A series of alkynylgold(I) phosphine complexes with various bridging phosphines and acetylide ligands have been synthesized. All complexes have been shown to exhibit rich photophysical and photochemical behaviour. A systematic comparative study on their spectroscopy and photophysics has been attempted. The complexes undergo facile electron-transfer reactions with pyridinium electron acceptors. The redox nature of the quenching reactions has been established by time-resolved transient absorption spectroscopy.

[1]  V. Yam,et al.  Synthesis and design of novel tetranuclear and dinuclear gold(I) phosphine acetylide complexes. First X-ray crystal structures of a tetranuclear ([Au4(tppb)(C≡CPh)4]) and a related dinuclear ([Au2(dppb)(C≡CPh)2]) complex , 1996 .

[2]  Z. Assefa,et al.  Syntheses, Structures, and Spectroscopic Properties of Gold(I) Complexes of 1,3,5-Triaza-7-phosphaadamantane (TPA). Correlation of the Supramolecular Au.cntdot. .cntdot. .cntdot.Au Interaction and Photoluminescence for the Species (TPA)AuCl and [(TPA-HCl)AuCl] , 1995 .

[3]  David J. Williams,et al.  SYNTHESIS, STRUCTURAL CHARACTERIZATION AND PHOTOPHYSICAL PROPERTIES OF ETHYNE-GOLD(I) COMPLEXES , 1994 .

[4]  C. Che,et al.  Luminescent metal clusters. Spectroscopic properties and X-ray structure of a trinuclear gold(I) complex containing bis(diphenylphosphino)methane and phenylacetylide , 1994 .

[5]  J. Vittal,et al.  Organometallic polymers with gold(I) centers bridged by diphosphines and diacetylides , 1993 .

[6]  R. Staples,et al.  Luminescent mononuclear gold(I) phosphines , 1992 .

[7]  H. Gray,et al.  Emission spectroscopic properties of 1,2-bis(dicyclohexylphosphine) ethane complexes of gold(I) , 1992 .

[8]  P. Pyykkö,et al.  Ab initio Calculations on the (ClAuPH3)2 Dimer with Relativistic Pseudopotential: Is the “Aurophilic Attraction” a Correlation Effect? , 1991 .

[9]  M. Savas,et al.  Electronic absorption and MCD spectra for the binuclear three-coordinate gold(I) complex Au2(dmpm)32+ (dmpm = bis(dimethylphosphino)methane) , 1989 .

[10]  W. Mason,et al.  Electronic absorption and MCD spectra for isoelectronic linear two-coordinate bis(tri-tert-butylphosphine)metal complexes of platinum(0) and gold(I) , 1989 .

[11]  J. Fackler,et al.  Syntheses and crystal structures (No gold-hydrogen interactions) of gold phosphine luminescent complexes, [Au2(dppm)2][BH3CN]2 and [Au2(dppm)2(I)][Au(CN)2] and [Au2(dppm)2(S2CNEt2)][BH3CN] , 1989 .

[12]  J. Fackler,et al.  Luminescence and metal-metal interactions in binuclear gold(I) compounds , 1989 .

[13]  R. Rogers,et al.  Crystal structures and solution electronic absorption and MCD spectra for perchlorate and halide salts of binuclear gold(I) complexes containing bridging Me2PCH2PMe2 (dmpm) or Me2PCH2CH2PMe2 (dmpe) ligands , 1989 .

[14]  H. Gray,et al.  Spectroscopic properties of binuclear palladium(0) and platinum(0) dibenzylideneacetone complexes , 1989 .

[15]  H. Gray,et al.  Pyrophosphito-bridged diplatinum chemistry , 1989 .

[16]  A. Balch,et al.  Nearly linear rhodium(I) aggregates. Chemical and spectroscopic behavior of [Rh3(CNCH3)6{.mu.-(Ph2PCH2)2PPH}2]3+ and its oxidation products , 1988 .

[17]  Suning Wang,et al.  Synthesis and characterization of the luminescent dithiolate-bridged dimer [n-Bu4N]2[Au(i-MNT)]2 (i-MNT=S2C2(CN)22−) and its structurally characterized, metal-metal-bonded gold(II) oxidation product [Ph4As]2[Au(i-MNT)Cl]2 , 1988 .

[18]  H. Gray,et al.  Low-lying singlet and triplet electronic excited states of binuclear (d10-d10) palladium(0) and platinum(0) complexes , 1988 .

[19]  M. Savas,et al.  Electronic and MCD spectra of linear two-coordinate dihalo-, halo(trialkylphosphine)-, and bis(triethylphosphine)gold(I) complexes , 1987 .

[20]  W. Mason,et al.  ELECTRONIC AND MAGNETIC CIRCULAR DICHROISM SPECTRA OF LINEAR TWO-COORDINATE GOLD(I) COMPLEXES OF ALKYL ISOCYANIDE OR TRIALKYL PHOSPHITE LIGANDS , 1982 .

[21]  S. F. Rice,et al.  Photophysical properties of the lowest electronic excited states of binuclear rhodium(I) isocyanide complexes , 1982 .

[22]  E. Kosower,et al.  1-Alkyl-2-(carbomethoxy)pyridinyl radicals: monomers and dimers defined through chemical and photochemical properties and electron paramagnetic resonance , 1981 .

[23]  H. Schmidbaur.  Is Gold Chemistry a Topical Field of Study , 1976 .

[24]  W. Mason.  Metal to ligand charge-transfer spectra in tetra-n-butylammonium dicyanoaurate(I) , 1976 .

[25]  J. Cotter,et al.  Stable Free Radicals. II. The Reduction of 1-Methyl-4-cyanopyridinium Ion to Methylviologen Cation Radical , 1964 .