Cucurbit[10]uril-Based Smart Supramolecular Organic Frameworks in Selective Isolation of Metal Cations
Cucurbit[10]uril-Based Smart Supramolecular Organic Frameworks in Selective Isolation of Metal Cations
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DOI：
10.1021/acs.chemmater.7b01751
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发表时间：
2017-06
影响因子：
8.6
通讯作者：
Yu-Qing Yao;Yingjie Zhang;Chao Huang;Qian-jiang Zhu;Z. Tao;Xin‐Long Ni;G. Wei
中科院分区：
文献类型：
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作者：
Yu-Qing Yao;Yingjie Zhang;Chao Huang;Qian-jiang Zhu;Z. Tao;Xin‐Long Ni;G. Wei
在目前的工作中，我们报告了一种简单，低成本但高效的超分子方法，用于序列分离许多金属阳离子。即，基于葫芦bbbbl的智能超分子有机框架（SOFs）。在HCl介质中，Q[10]-SOFs可以与选定的金属阳离子配合形成Q[10]-Mn+沉淀，而在HNO3介质中，由于Q[10]在HNO3溶液中的溶解度较差，可以将选定的金属阳离子从Q[10]-Mn+络合物中解离并萃取，从而使Q[10]无沉淀。x射线分析表明，Q b[10]基SOFs在不同溶剂中的柔性和可调的多孔尺寸是导致这些结构被用作金属选择性材料的关键因素。
In the present work, we report a simple, lower cost but highly efficient supramolecular approach for the sequence isolation of a number of metal cations. Namely, the cucurbit[10]uril-based smart supramolecular organic frameworks (SOFs). In the HCl medium, Q[10]-SOFs can coordinate to selected metal cations to form Q[10] -Mn+ precipitates, whereas the HNO3 medium can dissociate and extraction the selected metal cations from Q[10]-Mn+ complexes followed by precipitation free Q[10] due to the poor solubility of Q[10] in HNO3 solution. X-ray analysis revealed that the flexible and tunable porous size of Q[10]-based SOFs in different solvents, is the key factor led to these architectures being used as metal-selective materials.