Proximity Effect in Uranyl Coordination of the Cucurbit[6]uril-Bipyridinium Pseudorotaxane Ligand for Promoting Host-Guest Synergistic Chelating
文献类型：期刊论文
| 作者 | Li, Fei-Ze; Geng, Jun-Shan; Hu, Kong-Qiu; Yu, Ji-Pan; Liu, Ning; Chai, Zhi-Fang; Mei, Lei; Shi, Wei-Qun |
| 刊名 | INORGANIC CHEMISTRY
 |
| 出版日期 | 2021 |
| 卷号 | 60期号:14页码:10522-10534 |
| 关键词 | METAL-ORGANIC FRAMEWORK POLYROTAXANES INCLUSION DESIGN |
| 英文摘要 | behavior of cucurbituril-bipyridinium pseudorotaxane ligand by utilizing meta-functionalized bipyridinium dicarboxylate guest. A tailored pseudorotaxane precursor involving 1,1'-(hexane-1,6-diyl)bis(3-cyanopyridin-1-ium) bromide (C6BPCN3) and cucurbit[6]uril (CB[6]) has designed and synthesized. Through in situ hydrolysis of the pseudorotaxane ligands and their coordination assembly with uranyl cations, seven new uranyl-rotaxane coordination polymers URCP1-URCP7 have been obtained under hydrothermal conditions in the presence of different anions. It is demonstrated that the variation of carboxylate groups from para- to meta-position greatly affected the coordination behaviors of the metafunctionalized pseudorotaxane linkers, which are enriched from simple guest-only binding to host-guest simultaneous coordination and synergistic chelating. This effective regulation on uranyl coordination of supramolecular pseudorotaxane can be attributed to the proximity effect, which refers to the meta-position carboxyl group being spatially closer to the portal carbonyl group of CB[6]. Moreover, by combining other regulation methods such as introducing competing counterions and modulating solution acidity, the nuclearity of the uranyl center and the coordination patterns of the pseudorotaxane ligand can be diversely tuned, which subsequently exert great influence on the final dimensionality of resultant uranyl compounds. This work presents a large diversity of uranyl-based coordination polyrotaxane compounds with fascinating mechanically interlocked components and, most importantly, provides a feasible approach to adjust and control the metal coordination behavior of the pseudorotaxane ligand that might expand the scope of application of such supramolecular ligands. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21732]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | Mei, L (corresponding author), Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, Fei-Ze,Geng, Jun-Shan,Hu, Kong-Qiu,et al. Proximity Effect in Uranyl Coordination of the Cucurbit[6]uril-Bipyridinium Pseudorotaxane Ligand for Promoting Host-Guest Synergistic Chelating[J]. INORGANIC CHEMISTRY,2021,60(14):10522-10534. |
| APA | Li, Fei-Ze.,Geng, Jun-Shan.,Hu, Kong-Qiu.,Yu, Ji-Pan.,Liu, Ning.,...&Shi, Wei-Qun.(2021).Proximity Effect in Uranyl Coordination of the Cucurbit[6]uril-Bipyridinium Pseudorotaxane Ligand for Promoting Host-Guest Synergistic Chelating.INORGANIC CHEMISTRY,60(14),10522-10534. |
| MLA | Li, Fei-Ze,et al."Proximity Effect in Uranyl Coordination of the Cucurbit[6]uril-Bipyridinium Pseudorotaxane Ligand for Promoting Host-Guest Synergistic Chelating".INORGANIC CHEMISTRY 60.14(2021):10522-10534. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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