二(三苯基膦)乙基黄原酸金属配合物的晶体结构和谱学表征(英文) |
Crystal Structures and Spectra Characterizations of Ethylxanthic Bis(triphenylphosphine) Metal(Ⅰ) Complex: M(Et-XA)(PPh3)2 [M=Au(Ⅰ), Cu(Ⅰ)] |
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关键词: 三苯基膦配体 乙基黄原酸配体 Au(Ⅰ)和Cu(Ⅰ)配合物 晶体结构 |
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Abstract: The crystal structures of the complexes of [Au(Et-XA)(PPh3)2] (1), and [Cu(Et-XA)(PPh3)2] (2), have been determined by X-ray crystallography. They are isomorphous. The crystal structures are very similar and consist of discrete molecules of [Au(Et-XA)(PPh3)2] and [Cu(Et-XA)(PPh3)2], respectively. They all display distorted tetrahedral geometry around the central metal atom. In the complexes, the ethylxanthate ions act as bidentate lig-ands with their S atoms coordinated to metal. Each forms a four-member chelate ring. The P atoms from two triphenylphosphine ligands are coordinated to the metal atom. The Au-P bond lengths are 0.2295(2)nm and 0.2329(2)nm, and the Au-S bond lengths are 0.2620(3)nm and 0.2846(3)nm, respectively. The Cu-P and Cu-S bond lengths are 0.2254(1)nm, 0.2273(2)nm, and 0.2375(1)nm, 0.2495(2)nm, respectively. Elemental analysis, electronic and IR spectra are in agreement with the structural data. CCDC: 1, 208728; 2, 208903. |
Keywords: triphenylphosphine ligand O-ethylcarbonodithiolato(xanthates) ligand gold(Ⅰ) and copper (Ⅰ) complexes crystal structures |
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建方方,李 艳,肖海连,焦 奎.二(三苯基膦)乙基黄原酸金属配合物的晶体结构和谱学表征(英文)[J].无机化学学报,2003,19(7):761-765. |
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