摘要
以3,5-二甲基苄基氯和间氰基苄基氯在适当的溶剂中与锡粉反应,合成了三(3,5-二甲基苄基)氯化锡(1)和四(间氰基苄基)锡(2),经X射线衍射方法测定了化合物的晶体结构。化合物1属单斜晶系,空间群为P21/m,晶体学参数:a=0.584 03(4)nm,b=1.966 37(14)nm,c=0.856 46(5)nm,β=95.138(3),V=0.979 62(11)nm3,Z=2,Dc=1.735 g·cm-3,μ(Mo Kα)=14.53 cm-1,F(000)=524,R1=0.043 7,w R2=0.123 2。化合物2属单斜晶系,空间群为C2/c,晶体学参数:a=1.692 21(12)nm,b=1.167 41(8)nm,c=1.539 41(11)nm,β=116.615(10)°,V=2.718 9(3)nm3,Z=4,Dc=1.424 g·cm-3,μ(Mo Kα)=9.67cm-1,F(000)=1 176,R1=0.017 5,w R2=0.046 1;中心锡原子为畸变四面体构型。对其结构进行量子化学从头计算,探讨了配合物的稳定性、分子轨道能量以及部分前沿分子轨道的组成特征。
The tri(3,5-dimethylbenzyl)tin chloride (1)and the tetra(m-cyanobenzyl)tin (2) have been synthesized. The crystal structures of the complexes were determined by X-ray diffraction. The crystal of 1 belongs to monoclinic space group P2,/m with a=0.584 03(4) nm, b=1.966 37(14) nm, c=0.856 46(5) nm, β=95.138(3)°, V=0.979 62(11) nm^3, Z=2, Dc=1.735 g·cm^-3, μ(Mo Kα)=14.53 cm^-1, F(000)=524, R1=0.043 7, wR2=0.123 2. The crystal 2 belongs to monoelinic space group C2/c with a=1.692 21(12) nm, b=1.167 41(8) nm, c=1.539 41(11) nm, β=116.615(10)°, V=2.718 9(3) nm^3, Z=4, Dc=1.424 g·cm^-3,μ(Mo Kα)=9.67 cm^-1, F(000)=1176, R1=0.017 5, wR2=0.046 1. The tin atoms have a distorted tetrahedral geometry. The stabilities, some frontier molecular orbital energies and composition characteristics of some frontier molecular orbital of the complex have been investigated by quantum chemistry calculation.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2015年第2期237-242,共6页
Chinese Journal of Inorganic Chemistry
基金
湖南省高校创新平台开放基金项目(No.12K124)
湖南省自然科学基金项目(No.11JJ3021)
湖南省重点学科基金
湖南省高校重点实验室开放基金(No.13K02)资助