摘要
本文以六元瓜环及两种部分甲基取代六元瓜环(统称为Q[6]s)为构筑元件,合成了4个Q[6]s-Sr髤离子的配合物,用X射线单晶衍射方法测定了配合物的晶体结构。结果表明,Q[6]s-Sr髤离子配合物自组装形成不同结构的分子链,体系中存在Cl-离子时,Q[6]s-Sr髤离子形成配位聚合链,而只有NO3-离子存在时,形成水分子配位桥连的超分子链。
In the present work, three different cucurbit[6]urils （Q[6]s）, the unsubstituted cucurbit[6]uril, 1,3,5-hexamethylcucurbit[6]uril, and symmetric tetramethyl cucurbit[6]uril were selected as the building blocks or the construction of Q[6]s-based coordination polymers. Four compounds based on the Q[6]s-Sr（Ⅱ） complexes were synthesized and characterized by single crystal X-ray diffraction. The crystal structures of the obtained compounds show a common feature of Q[6]s-Sr（Ⅱ） complex-based one dimensional supramolecular chain. In the presence of Cl- anion as a counter ion, the supramolecular chains are typical coordination polymers, while in the presence of NO3- anion as a counter ion, the formation of chain is based on share of coordinated water molecules.CCDC： 653909, 1; 977776, 2; 977778 3; 977777, 4.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2014年第3期473-480,共8页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金项目(No.21272045)
教育部"春晖计划"(No.Z2008-1-55001)
贵州省科学技术基金(No.J2009-2024)资助项目
关键词
六元瓜环
s)
Sr(Ⅱ)离子
超分子自组装
晶体结构
cucurbit[6]uri methyl-substituted cucurbit[6]uri（Q[6]s） strontium（Ⅱ） cation supramolecular assemblies crystal structure
