Characterization of the luminescent, homoleptic, three-coordinate, water soluble Au(I) complex of trisulfonated triphenylphosphine (TPPTS) as the cesium salt, Cs8[Au(TPPTS)3]•5.25 H2O
Characterization of the luminescent, homoleptic, three-coordinate, water soluble Au(I) complex of trisulfonated triphenylphosphine (TPPTS) as the cesium salt, Cs8[Au(TPPTS)3]•5.25 H2O
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DOI：
10.1007/bf03214785
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发表时间：
1999-01-01
期刊：
影响因子：
2.2
通讯作者：
Staples, RJ
中科院分区：
文献类型：
--
作者：
Fackler, JP;Grant, TA;Staples, RJ
研究了均相金属-TPPTS络合物Cs-8[Au(TPPTS)(3)].5.25H2O的结构。具有晶胞常数a=100.249(4)，b=18,0001(6)，c=18,2817(2)，α=100.249(2)，β=99.593(2)，伽马=109.818(2)的三斜晶系晶体P-1的X射线数据显示由三个TPPTS配体配位的三角平面Au(I)中心，其Au-P距离等于2.374(6)，2.394(5)和2.417(5)A。该结构显示了涉及Cs+离子，配体的硫酸盐基团，和H2O溶剂分子。固体和水溶液中的[Au(TPPTS)(3)]8(-)发光在约520 nm处有宽发射，可被O-2等小分子猝灭，在约552 nm处有禁止的单重态到三重态的吸收，峰宽约为0.8Lmol(-1)cm(-1)。
The homoleptic metal-TPPTS complex Cs-8[Au(TPPTS)(3)].5.25 H2O has been characterized structurally. The x-ray data for the triclinic crystal, P-1, with cell constants a = 13.7003(4), b = 18,0001(6), c = 18,2817(2), alpha = 100.249(2), beta = 99.593(2), gamma = 109.818(2) shows trigona planar Au(I) centers coordinated by three TPPTS ligands having Au-P distances equal to 2.374(6), 2.394(5), and 2.417(5)A. The structure shows a complex network of bonding involving the Cs+ ions, the sulfate groups of the ligand, and H2O solvent molecules. The [Au(TPPTS)(3)]8(-) luminesces in the solid state and in aqueous solution with a broad emission at ca 520 nm which is quenched by O-2, and other small molecules, The forbidden singlet to triplet absorption at ca 552 nm with epsilon similar to 0.8Lmol(-1)cm(-1) is also observed.