有机锡{[(n-C_4H_9)_2Sn(0.5·O_2CC_(13)H_9N_2)(0.5CH_3O)]_2O}_2配合物的合成、结构

Synthesis,Crystal Structure of Organotin(IV)Complex{[(n-C_4H_9)_2Sn(0.5·O_2CC_(13)H_9N_2)(0.5CH_3O)]_2O}_2

由2-(2-羧基苯基)-苯并咪唑和二正丁基氧化锡反应,制得新化合物{[(n-C4H9)2Sn(0.5·O2CC13H9N2)(0.5CH3O)]2O}2.通过元素分析、红外光谱等对其结构进行了表征,用X-射线单晶衍射仪测定了配合物的晶体结构.该配合物属于三斜晶系,空间群为P-1,晶胞参数a=1.0815(4)nm,b=1.2481(4)nm,c=1.3292(4)nm,α=83.502(5)°,β=86.049(5)°,γ=78.631(5)°,V=1.7457(10)nm3.测试结果表明,它是以Sn2O2四元环为中心,中心对称的二聚体结构,内、外环锡原子均为五配位的畸变三角双锥构型.

Organotin（ Ⅳ ）complex{[（n-C4H9）2Sn（0.5·O2CC13H9N2）（0.5CH3O）]2O}2. was synthesized by the reaction of n-dibutyltin oxide with xxxx. The complex was characterized by elemental analysis, IR and H NMR. The crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to monoclinic, with space group C2/c with a=1.0815（4） nm,b=1.2481（4）nm,c=1.3292（4）nm,α=83.502（5）°,β=86.049（5）°,γ=78.631（5）°,V=1.7457（10）nm^3. The complex is a centrosymmetric structure mode with a four-member central endo-cyclie Sn2O2 unit in which two bridged oxygen atoms both connect with an exo-cyclic tin atom. The endo-cyclic tin atoms and the exo-cyclic tin atoms are all five-coordination and have a coordination geometry of a distorted trigonal bipyramid.