外壁作用驱动的瓜环基超分子框架化合物及其功能性质.docx
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1、外壁作用驱动的瓜环基超分子框架化合物及其功能性质陈丽霞黄英高瑞啥倪新龙肖昕丛航祝黔江陶朱子的限制;根据BARDELANG等53报道,Q6和Q8基超分子框架通道的孔径 分别由Q6和讥8端口直径决定。2总结与展望本文小结了在Qn化学中外壁作用驱动的QSFs的局部研究。根据Qns外壁 作用类型不同,构筑QSFs的相互作用可大致分为三类:自身诱导、无机阴离子 诱导和有机芳族化合物诱导:i)对于自身诱导的QSFs,其驱动力归因于静电 势端口凝基氧原子与相邻Qns静电势呈正电性外壁之间的偶极作用,包括该 瓜环分子端口被基氧原子和相邻讥n分子昔腺次甲基单元、桥接亚甲基单元以 及端口覆基碳原子之间的相互作用。
2、ii)对于无机阴离子诱导的QSFs,其驱动 力归因于负电性阴离子与QEnls的正静电势外壁之间的离子一偶极相互作用。无机阴离子包括各种无机酸根阴离子,多氯过渡金属阴离子以及多酸阴离子 等,无机阴离子通常不参与Qns的配位或者包结在瓜环的空腔中。iii)对于 有机芳族化合物诱导的QSFs,其驱动力归因于结构导向剂中芳香环与瓜环端口 殿基的互相互作用、以及与Qns桥连亚甲基或昔腺次甲基亚的CH冗相互 作用,如果结构导向剂含有覆酸根阴离子,那么还可与相邻Qn分子的正静电势 外壁作用形成各种外壁作用驱动的QSFs。与其他类型的QSFs相比,如基于 Qn分子和金属离子配位作用构筑的Qn基MOF、基于Qn
3、分子与客体之间相 互作用构筑的guest Qn基SOF以及Qn的准轮烷与金属离子配位构筑的 QSFs,外壁作用驱动的QSFs的特点是组成简单、易于合成、产率高。此外,由 于各种合成方法以及众多的Qn和类似物,外壁作用驱动的QSFs还具有多样 化特点。此外,通过引入不同大小的Qn,可以实现对外壁作用驱动QSFs的 结构调节。功能特性的研究说明,外壁作用驱动的QSFs在气体吸附、选择性金 属离子捕集、染料分子吸附以及固相微萃取维涂层吸附剂材料等方面有出色 表现。预计它们将在纳米技术、分子筛、传感器、气体吸附和别离、离子或分 子传输以及非均相催化等方面广泛应用。参考文献:1DUSSELIER M,
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