Crystal structure of bis(2-aminopyridinium) dimethyltetrachlorostannate(IV) and its formation by hydrolysis of dimethyltin dichloride
作者:Giovanni Valle、Angeles Sánchez González、Renato Ettorre、Gualtiero Plazzogna
DOI:10.1016/0022-328x(88)80338-3
日期:1988.6
surrounded by four 2-aminopyridinium ions and is involved in ten hydrogen-bonding interactions with d(NH⋯ Cl) ranging from 3.242(12) to 3.463(12) Å. 1H NMR data show that (C5H7N2)2[Sn(CH3)2Cl4] is formed along with 1,3-dichloro-1,1,3,3-tetramethyldistannoxane in the reaction of Sn(CH3)2Cl2 and C5H6N2 in moist CDCl3; the fact that hydrolysis of the dimethyltin dichloride takes place is related to the relatively
(C 5 H 7 N 2)2 [Sn(CH 3)2 Cl 4 ]的结构已经通过X射线衍射确定。该化合物在正交晶系空间群Pbca(No. 61)中结晶,晶胞尺寸为a 15.585(2),b 17.561(2),c 7.088(1)Å和Z =4。该结构由氢组成[Sn(CH 3)2 Cl 4 ] 2−阴离子和C 5 H 7 N 2 +成对的碳键链阳离子。每个反式二甲基四氯锡酸酯(IV)八面体单元被四个2-氨基吡啶鎓离子包围,并与d(NH⋯Cl)的十种氢键相互作用涉及,范围为3.242(12)至3.463(12)Å。1 H NMR数据表明,在Sn(Sn)的反应中与(1,3-二氯-1,1,3,3-四甲基二恶烷)一起形成了(C 5 H 7 N 2)2 [Sn(CH 3)2 Cl 4 ]。湿CDCl 3中的CH 3)2 Cl 2和C 5 H 6 N 2; 二氯化二甲基锡发生水解的事实与2-氨基吡啶的相对较高的碱性和较低的配位趋势有关。