双核有机锡配合物CH_2(SnPhBr_2)_2·2DMSO的合成及晶体结构

通过双 (苯基二溴化锡基 )甲烷CH2 (SnPhBr2 ) 2 与DMSO的配位反应或者双 (苯基二溴化锡基 )甲烷的双 (三唑 )甲烷配合物CH2 (SnPhBr2 ) 2 ·CH2 Tz2 与DMSO的配体取代反应 ,可以制得标题化合物。用X 射线衍射测定了该化合物的晶体结构。结果表明 ,该晶体属于单斜晶系 ,C2 /c空间群。分子式为C1 3H1 2 Br4Sn2 ·2 (C2 H6SO) ,Mr=881 .52 ,a =1 0 .0 4 0 (2 ) ,b =1 5.345(3) ,c =1 7.992 (4) ,β =1 0 5.99(3)°,V =2 665(1 ) 3,Z =4,Dc=2 .1 92Mg·m- 3,μ =7.9674mm- 1 ,1 31 4个可观测衍射点 (I≥ 3σ(I) ) ,最终结构偏离因子R =0 .0 4 2 ,Rw =0 .0 4 6。分子中 2个锡原子均为六配位的变形八面体构型 ,通过DMSO中的氧原子桥联 2个锡原子。

Synthesis and Crystal Structure of Binuclear Organotin Complex CH2 (SnPhBr2)2·2DMSO

The title compound is synthesized by the reaction of bis(dibromophenyl stannyl) methane with dimethyl sulfoxide or replacement reaction of bis(dibromophenylstannyl) methane derivative containing bis(triazol 1 yl)methane with dimethyl sulfoxide. The X ray crystal structure analysis shows that the crystal is monoclinic, space group C2/c, with a=10.040(2), b=15.345(3), c=17.992(4) , β=105.99(3)°, V=2665(1)  3, Z=4, D c =2.192 Mg·m -3 , the final R=0.042, Rw= 0.046 for 1314 observable reflections ( I≥3σ(I) )。Each tin atom in the title compound is six\|coordinated with a distorted octahedral coordination geometry.