Novel luminescent polynuclear gold(I) phosphine complexes. Synthesis, spectroscopy, and X-ray crystal structure of [Au3(dmmp)2]3+[dmmp = bis(dimethylphosphinomethyl)methylphosphine]
作者:Vivian Wing-Wah Yam、Ting-Fong Lai、Chi-Ming Che
DOI:10.1039/dt9900003747
日期:——
(dmmp) in the presence of thiodiglycol (2,2′-thiodiethanol) in methanol yielded [Au3(dmmp)2]3+, which was isolated as its perchlorate salt. The X-ray crystal structure of [Au3(dmmp)2][ClO4]3 has been determined: monoclinic, space group P21/n, a= 1 2.880(3), b= 14.210(1), c= 21.208(2)Å, β= 106.25(1)°, Z= 4, R= 0.047 for 2 927 observed Mo-Kα data. The Au–Au–Au bond angle of 136.26(4)° is greatly distorted
K [AuCl 4 ]与双(二甲基膦基甲基)甲基膦(dmmp)在硫二甘醇(2,2'-thiodiethanol)的存在下在甲醇中反应生成[Au 3(dmmp)2 ] 3+,将其作为高氯酸盐分离。已确定[Au 3(dmmp)2 ] [ClO 4 ] 3的X射线晶体结构:单斜晶系,空间群P 2 1 / n,a = 1 2.880(3),b = 14.210(1),c = 21.208(2)Å,β= 106.25(1)°,Z = 4,R= 0.047 2 927观察到钼ķ α的数据。136.26(4)°的Au–Au–Au键角与直线几何形状大相径庭,分子内Au⋯Au距离为2.981(1)和2.962(1)Å。脱气的乙腈溶液激励[金3(DMMP)2 ] 3+在300-370纳米导致双磷光(λ= 467纳米,τ 0 = 1.6±0.2微秒;λ= 580纳米,τ 0 = 7.0± 0.5 µs)。[Au