red crystalline products, respectively. In compound 1 the Hdpa coordinates very weakly to tin through O (2.434(7) Å), N(1) (2.695(8) Å) and N(3) (2.749(9) Å); on the contrary, in 2 the Hdpa is deprotonated and binds much more strongly to tin through the same atoms (2.200(16), 2.162(19) and 2.140(18) Å, respectively). 119Sn NMR data in dimethyl sulphoxide suggest that the solid state structure of 2
从二-2-
吡啶基酮2-
氨基苯甲酰hydr(Hdpa)与SnPh 2 Cl 2的反应中,分离出两个络合物,即[SnPh 2(Hdpa)Cl 2 ](1)和[SnPh(dPa)Cl 2 ](2)。分别为黄色和红色结晶产物。在化合物1中,Hdpa通过O(2.434(7)Å),N(1)(2.695(8)Å)和N(3)(2.749(9)Å)与
锡的配位非常弱。相反,在2中,Hdpa被去质子化,并通过相同的原子(分别为2.200(16),2.162(19)和2.140(18)Å)更牢固地与
锡结合。
二甲基亚砜中的119 Sn NMR数据表明2的固态结构保留,而1则在解决方案中分解。