Synthesis, characterisation and X-ray crystal structures of diorganotin(IV) complexes with 2-mercaptopyridine derivatives
作者:M.D Couce、G Faraglia、U Russo、L Sindellari、G Valle
DOI:10.1016/0022-328x(95)05985-x
日期:1996.5
By reaction of diorganotin(IV) dihalides with esters of 2-mercapto-pyridine-5-carboxylic acid () the complexes R2SnX(L) and R2Sn(L)2 (L = TNEE or TNIPE; R = Me, Et, Bu or Ph) have been prepared and characterised by IR, NMR, and Mössbauer spectroscopies. The structures of Et2SnBr(TNIPE) and Me2SnCl(TNEE) have been determined by an X-ray single crystal diffraction study. Both ligands behave as bidentate
通过使二有机锡(IV)二卤化物与2-巯基吡啶-5-羧酸的酯()反应,形成配合物R 2 SnX(L)和R 2 Sn(L)2(L = TNEE或TNIPE; R = Me,已经制备了Et,Bu或Ph),并通过IR,NMR和Mössbauer光谱进行了表征。通过X射线单晶衍射研究确定了Et 2 SnBr(TNIPE)和Me 2 SnCl(TNEE)的结构。两个配体均表现为双齿螯合基团,形成一个四元环,具有非常相似的小NSnS咬合角。锡原子以严重扭曲的三角双锥几何形状配位,对于Et 2 SnBr(TNIPE)的顶XSnN角为151.9(2)°,对于Me 2的顶角XSnN角为154.9(1)°SnCl(TNEE)和赤道CSnZ角分别为127.4(6)°和129.8(2)°。根据119 SnMössbauer数据,为所有配合物提出了类似的结构。