cis-oriented dtc functions. Thus, for the complexes derived from 1,3-Bn/(i)Bu-ambdtc, two different macrocyclic structures were observed. In the dimethyl- and di-n-butyltin derivatives, the bridging bis-dtc ligands adopt U-shaped conformations, while in the case of the diphenyltin derivative, the conformation is L-shaped. Furthermore, two different macrocyclic ring conformations can occur, which differ
1,3-双(苄基
氨基甲基)苯(1,3-Bn-ambdtc),1,3-双(异丁基
氨基甲基)苯(1,3-(i))的双二
硫代
氨基甲酸钾(bis-dtc)盐使Bu-ambdtc),1,4-双(苄基
氨基甲基)苯(1,4-Bn-ambdtc)和1,4-双(异丁基
氨基甲基)苯(1,4-(i)Bu-ambdtc)反应与三种不同的二有机二有机二
氯化物(R2SnCl2,R = Me,(n)Bu和Ph)按
化学计量比1:1混合,得到相应的二
有机锡双-二
硫代
氨基甲酸酯。另外,制备了1,1'-双(苄基
氨基甲基)
二茂铁(1,1'-Bn-amfdtc)的
二甲基锡双-二
硫代
氨基甲酸酯。所得络合物已通过元素分析,FAB(+)质谱,IR和NMR((1)H,(13)C和(119)Sn)光谱以及单晶X射线进行了尽可能多的表征衍射,表明
锡络合物是组成[R2Sn(bis-dtc)} 2]的双核24和26元大环物种。如(119)Sn