三(邻氟苄基）氯化锡和四(对氟苄基）锡的合成及结构研究

邻氟苄基氯或对氟苄基氯分别与锡反应合成三(邻氟苄基)氯化锡(1)和四(对氟 苄基)锡(2)．经X射线方法测定了新化合物的晶体结构．晶体结构1属单斜晶系，空 间群为P2(1)／n，晶体学参数：a＝0.5896(9)nm,b-1.262(2)nm,c=2.634(4)nm, V=1.959(5)nm^3,Z=4,Dx=1.632g/cm^3,μ（Mo Kα)=14.69cm^-1,F(000)=952, R1=0.0541,wR2=0.1280;晶体结构2属单余晶系，空间群为Cc,晶体学参数：α=1. 0778(6)nm,b=2.3312(14)nm,c=1.0888(7)nm,V=2.460(3)nm^3,Z=4,Dx=1. 499g/cm^2,μ(Mo Kα)=10.82cm^-1,F(000)=1112,R1=0.0302,wR2=0.0590.在化合 物1和2中Sn-C键长分别为0.2136-0.2148和0.2138-0.2180nm,Sn-Cl键长为0.2378 (4)nm,中心锡与亚甲基碳（氯）原子构成畸型四面体。

Study on the Synthesis and Crystal Structures of Tri(o-fluorobenzyl) tin Chloride and Tetra (p-fluorobenzyl) tin

The 7i-butyl alcohol solution of o-fluorobenzyl chloride or p- fluorobenzyl chloride and Sn was heated at reflux for 5 h to yield tri( o-fluorobenzyl)tin chloride (1) and tetra(p-fluorobenzyl) tin (2) , respectively. The crystal and molecular structures of compounds 1 and 2 were determined by X-ray diffraction study. TTie crystal 1 are monoclinic, space group P2(l)/n with a =0.5896(9) nm, 6 = 1.262(2) nm, c =2.634(4) ran, V= 1.959(5) nm~3, Z = 4, D-x=1.632g/cm~3, //(Mo Ka) = 14.69 cm~-1, F(000)=952, Wr-2= 0.0541, Wr-2 =0.1280. The crystal 2 belongs to monoclinic, space group Cc with a = 1.0778(6) nm, b = 2. 3312(14) nm, c = 1.0888(7) nm, F = 2.460(3)nm~3, Z = 4, D-K = 1.499 g/cm~3, //(Mo Ka) = 10.82 cm~-1, F(OOO) = 1112, Wr-2=0.0302, wR-2 = 0. 0590. The bond lengths of Sn-C are 0.2136 - 0.2148 and 0.2138 - 0.2180 nm, respectively. The bond length of Sn-Cl is 0.2378 nm. The tin atom adopts a distorted tetrahedral geometry.