对甲苯基-三(异丙烷氧基)钛配合物的晶体结构

Crystal Structure of (4-Tolyl)Tris(2-Propoxy) Titanium Complex

Ti(OiPr)3Cl与1当量的对甲苯基溴的格氏试剂反应,合成得到双核的对甲苯基-三(异丙烷氧基)钛配合物{(4-CH3C6H4)Ti(OiPr)2(μ-OiPr)}2.X-ray单晶衍射分析表明该配合物属于三斜晶系,P(-1)空间群,a=10.2110(4),b=11.2419(4),c=17.6221(9),α=78.464(4)°,β=74.771(4)°,γ=69.359(4)°.配合物的分子是一个二聚结构,通过两个异丙烷氧基的氧原子桥联形成一个Ti2O2骨架结构.每个钛金属中心分别与一个对甲苯基和四个异丙烷氧基的氧原子采取五配位的扭曲的双三角锥构型.

The title compound {（4-CH3C6H4）Ti（OiPr）2（μ-OiPr）}2 is synthesized by reaction of（4-CH3C6H4）MgBr with 1 equiv.Ti（OiPr）3Cl.It crystallizes in triclinic system,space group P（-1） with a=10.2110（4）？,b=11.2419（4）？,c=17.6221（9）？,α=78.464（4）°,β=74.771（4）°,γ=69.359（4）°.X-ray analysis of complex showed that molecular structure was a dimer with a Ti2O2 core bridging through the oxygen atom of two isopropoxy groups.The titanium metal centers adopt a distorted trigonal bipyramidal environment.