混合二烃基二氯化锡与水杨醛缩苯胺类Schiff碱配合物的合成和表征

Synthesis and Characterization of Schiff Base Complexes of Mixed Diorganotin Dichlorides

由混合二烃基二氯化锡与水杨醛缩苯胺类Ｓｃｈｉｆｆ碱反应，合成了２４种新的有机锡配合物。经元素分析、ＮＭＲ、ＴＧ－ＤＳＣ测定和Ｘ射线粉末衍射分析，确定有１４种是有机锡与Ｓｃｈｉｆｆ碱的１：１配合物，１０种是１：２配合物。配体是以酚羟基氧原子与锡原子配位，摩尔电导率测定表明这些配合物均为非电解质。

Twenty-four new addition complexes of type R′R″SnCl2·2- HOC6H4 CH=NC6H4Rand R′R″SnCl2·(2-HOC6H4CH=NC6H4R)2 have been synthesized by the reactions of mixed diorganotin dichlorides,R′R″SnCl2 (where R′= Et,Bu,Bz;R″=Ph;R′= Et, R″= Bu),with N-arylsalicylideneimines,2- HOC6H4CH=NC6 H4 R(where R= H,4- CH3, 4- OCH3,3-CH3,4-OH).The complexes are non electrolyte in nitrobenzene.NMR (1 H, 13C),TG-DSC and XRD studies indicate the ligands coordinate to Sn atom via phenolic O atom rather than imide N atom, under different reaction conditions,the same organotin compound and the same Schiff base can form the complex to have different coordination number.