含有三羰基铬结构单元的杂双核二丁基锡羧酸酯的合成及其晶体结构

摘要

A novel dimeric complex, {[ Cr(CO)3 (η6-PhCO2 ) SnnBu2]2O｝2(1), was synthesized by the reactionof nBu2SnO with Cr(CO)3(η6-PhCO2H). The structure was characterized by NMR,IR and X-ray single crystal diffraction. 1 belongs to monoclinic, space group P21/c with a =1.423 4 (4) nm, b=1.6133(4) nm, c=1.907 1(5) nm, β=110.334(5)°, V=4.1065(19) nm3, Z=4, Dc=1.611 Mg·m-3,μ=1.771 mm-1, F(000)=1992, R=0.0685, Rw=0.1385.%利用二丁基氧化锡与Cr(CO)3(η6-C6H5CO2H)反应制得新型杂双核二聚有机锡羧酸酯化合物--{[Cr(CO)3(η6-PhCO2)Sn(nBu)2]2O}2(1),其结构经NMR,IR和X-射线单晶衍射表征.1属单斜晶系,P21/c空间群,晶胞参数a=1.423 4(4) nm,b=1.613 3(4) nm,c=1.907 1(5) nm,β＝110.334(5)°,V=4.106 5(19) nm3,Z=4,Dc=1.611 Mg·m-3,μ=1.771 mm-1,F(000)=199 2,R=0.068 5,Rw=0.138 5.