A Bromine Adduct of 2,3,6,7,14,15-Hexamethyl-9,10-distibatriptycene. The First Stibonium–Stiborate Zwitterion
作者:Yosuke Uchiyama、Gaku Yamamoto
DOI:10.1246/cl.2005.966
日期:2005.7
10-distibatriptycene (3) reacted with bromine to give an adduct 4 with the composition of 3.2Br 2 . X-ray structure analysis and 1 H NMR studies revealed that the bromine adduct 4 forms an intramolecular salt composed of a tetracoordinate bromostibonium ion moiety, R 3 SbBr + , and a hexacoordinate tribromostiborate ion moiety, R 3 SbBr 3 - , both in the crystalline state and in solution.
2,3,6,7,14,15-Hexamethyl-9,10-distibatriptycene (3) 与溴反应得到加合物4,其组成为3.2Br 2 。X 射线结构分析和 1 H NMR 研究表明,溴加合物 4 形成由四配位溴化锡离子部分 R 3 SbBr + 和六配位三溴化硼酸离子部分 R 3 SbBr 3 - 组成的分子内盐,两者均在晶体中状态和解决方案。