碱土金属在Q[5]-CdCl_2体系中配位超分子自组装体的构筑(英文)  

Coordination and Supramolecular Assemblies from (M^(2+))_(alkaline earth)-Cucurbit[5]uril-[Cd Cl_4]^(2-) Systems

作　　者：丛航[1] 梁利利 王传真 张云黔[1] 陶朱[1] 薛赛凤[1] 祝黔江[1] 张振琴[2] 

机构地区：[1]贵州省大环化学及超分子化学重点实验室、贵州大学化学与化工学院,贵阳550025 [2]南京医科大学药学院化学系,南京210029

出　　处：《无机化学学报》2014年第11期2469-2476,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.)资助项目

摘　　要：通过X射线单晶衍射仪的结构表征技术,研究了碱土金属在五元瓜环-四氯镉酸根体系中的配位超分子自组装体的构筑。晶体结构表明:[CdCl4]2-的存在,能够使得碱土金属与五元瓜环形成分子胶囊。研究结构还发现,在这样的体系即使没有[CdCl4]2-或"蜂巢效应"存在,由于瓜环的外壁作用也能够促使这种结构形成。The coordination compounds and supramolecular assemblies of M2 ＋alkaline earth-cucurbit [5]uril-[Cd Cl4]2-systems were investigated. Single crystal X-ray diffraction analysis revealed that the presence of [Cd Cl4]2-could result in complexation of supramolecular assemblies of alkaline earth metal ions by cucurbit [5]uril（Q [5]）molecule to form molecular capsule structures. Regardless of whether [Cd Cl4]2-was present, there were driving forces that resulted in formation of complex based on the M2＋alkaline earth/Q[5]. These forces were ＂outer-surface interactions＂ of cucurbit[n]urils, which included unusual hydrogen bonding between methine or methylene groups on the outer-surface of Q[5] and chlorine anions of [Cd Cl4]2-or portal carbonyl oxygen atom of adjacent Q[5] molecules. CCDC： 980415, 1; 980417, 2; 980418, 3; 980419, 4.

关 键 词：碱土金属 五元瓜环 四氯镉酸根离子 超分子自组装 

分 类 号：O614.23[理学—无机化学] O614.242[理学—化学]