对称四甲基六元瓜环与2-戊基苯并咪唑盐酸盐自组装包合物晶体结构

• 作 者: 易君明 张云黔 薛赛凤 陶朱
• 机 构: 兴义民族师范学院化学生物系,贵州大学 贵州省大环化学及超分子化学重点实验室,
• 出 处: 化学试剂
• 发表日期: 2013年06期

以对称四甲基六元瓜环(TMeQ[6])为主体,2-戊基苯并咪唑盐酸盐(PB)为客体,在水溶液中自组装形成主客体超分子化合物{PB@TMeQ[6]}.Cl.9(H2O),利用X-射线单晶衍射技术对化合物的晶体结构进行了表征。实验结果表明,主客体之间通过多种非共价键作用形成1∶1的主客体包合物,客体的芳环被瓜环包结于空腔内,烷基置于瓜环端口外侧,包合物结构单元之间与共用水分子通过氢键连接成一维超分子链。

With symmetrical tetramethylcarbamates (TMeQ [6]) as the main body, 2-pentylbenzimidazole hydrochloride (PB) as a guest, self-assembled in aqueous solution to form host-guest supramolecular compounds {PB @ TMeQ [ 6]}. Cl.9 (H2O), the crystal structure of the compound was characterized by X-ray single crystal diffraction. The experimental results show that the main guest has a 1: 1 host-guest inclusion complex formed by a variety of non-covalent bonds. The guest aromatic ring is encapsulated in the cavity by melon ring, Clathrate structural units and shared water molecules through hydrogen bonds into one-dimensional supramolecular chains.