[（^tBuMe2SiC5H4）2YCl]2的合成和晶体结构  

Synthesis and Structure of [(tBuMe2SiC5H4)2YCl]2

作　　者：张立新[1] 张春梅[1] 黄子祥[2] 周锡庚[1] 蔡瑞芳[1] 黄祖恩[1] 

机构地区：[1]复旦大学化学系,上海200433 [2]中国科学院福建物质结构研究所,福州350002

出　　处：《Chinese Journal of Structural Chemistry》2004年第6期591-594,共4页结构化学（英文）

摘　　要：无水YCl3 与(tBuMe2SiC5H4)K在THF溶液反应制得[(tBuMe2SiC5H4)2Y(h-Cl)]2。晶体通过MoKa射线衍射法测定, 共收集到独立反射点5416个, 其中I > 2.0s(I)的反射点5154个。解析结果表明, 该晶体属单斜晶系, P21/c空间群。晶胞参数a = 11.559(2), b = 14.132(3), c = 16.127(3) , = 91.39(3)o, V = 2633.5(9) 3, Z = 2, Dc = 1.218 g/cm3, Mr = 966.13, m = 24.11 cm-1, F (000) = 1016, 最终偏离因子R = 0.0775, Rw = 0.2107。晶体结构显示, 标题配合物是一个中心对称的双氯桥二聚体结构。The reaction of YCl3 with two equivalent tBuMe2SiC5H4K in THF affords complex [(tBuMe2SiC5H4)2- YCl]2 which crystallizes in monoclinic, space group P21/c with a = 11.559(2), b = 14.132(3), c = 16.127(3) ? = 91.39(3), V = 2633.5(9) 3, Z = 2, Dc = 1.218 g/cm3, Mr = 966.13, m = 24.11cm-1 and F(000) = 1016. The least-squares refinement based on 5165 observed reflections (I > 2.0s(I)) converged to the final R = 0.0775 and Rw = 0.2107. The crystallographic data show that the title complex is a dichloride-bridged centrosymmetric dimmer.

关 键 词：稀土金属有机化合物 晶体结构 钇配合物 取代环戊二烯 合成 双氯桥二聚体结构 

分 类 号：O627[理学—有机化学]