Kinked-Helix Actinide Polyrotaxanes from Weakly Bound Pseudorotaxane Linkers with Variable Conformations
文献类型：期刊论文
| 作者 | Li, Fei-ze; Mei, Lei; An, Shu-wen; Hu, Kong-qiu; Chai, Zhi-fang; Liu, Ning; Shi, Wei-qun |
| 刊名 | INORGANIC CHEMISTRY
 |
| 出版日期 | 2020 |
| 卷号 | 59期号:6页码:4058-4067 |
| 关键词 | COORDINATION POLYMERS CHIRAL AMPLIFICATION STABILITY-CONSTANTS ORGANIC FRAMEWORK LIGAND CUCURBITURIL PH COMPLEXATION CONSTRUCTION ASSEMBLIES |
| DOI | 10.1021/acs.inorgchem.0c00037 |
| 英文摘要 | The incorporation of a mechanically interlocked molecule such as pseudorotaxane into metal-organic coordination polymers has afforded plenty of new hybrid materials with special structures and unique properties. In this work, we employ a weakly bound cucurbit[6]uril (CB[6])-bipyridinium pseudorotaxane as a supramolecular precursor to assemble with uranyl, aiming to construct uranyl-rotaxane coordination polymers (URCPs) with intriguing structures. By adjusting the synthetic conditions, a new kinked-helix uranyl rotaxane compound (URCP3), together with three other compounds URCP1, URCP2, and URCP4 varying from 1D chains to 2D interwoven networks, was obtained. Detailed structural analyses indicate that the pseudorotaxane ligand (C8BPCA@CB[6]) shows great configuration diversity in the construction of URCPs, which is most probably due to the weak binding strength between the host and guest molecules. Specifically, based on the monodentate coordination of the end carboxyl groups of C8BPCA forced by the surrounding unilaterally-chelated oxalate, the entire flexible pseudorotaxane linker will be more likely to undergo conformational change, thereby binding to the uranyl center from both sides of the uranyl equatorial plane and promoting the formation of a kinked helix structure of URCP3 that is shaped like a Chinese knot along [001]. This work enriches the library of actinide-rotaxane compounds and provides a new approach to construct metal-organic compounds with complicated structures using weakly bonded pseudorotaxanes as well. |
| 学科主题 | Chemistry |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/19870]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Liu, N (corresponding author), Sichuan Univ, Key Lab Radiat Phys & Technol, Chengdu 610064, Peoples R China. 2.Shi, WQ (corresponding author), Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China. 3.Liu, N (corresponding author), Sichuan Univ, Minist Educ, Inst Nucl Sci & Technol, Chengdu 610064, Peoples R China. 4.Mei, L |
| 推荐引用方式 GB/T 7714 | Li, Fei-ze,Mei, Lei,An, Shu-wen,et al. Kinked-Helix Actinide Polyrotaxanes from Weakly Bound Pseudorotaxane Linkers with Variable Conformations[J]. INORGANIC CHEMISTRY,2020,59(6):4058-4067. |
| APA | Li, Fei-ze.,Mei, Lei.,An, Shu-wen.,Hu, Kong-qiu.,Chai, Zhi-fang.,...&Shi, Wei-qun.(2020).Kinked-Helix Actinide Polyrotaxanes from Weakly Bound Pseudorotaxane Linkers with Variable Conformations.INORGANIC CHEMISTRY,59(6),4058-4067. |
| MLA | Li, Fei-ze,et al."Kinked-Helix Actinide Polyrotaxanes from Weakly Bound Pseudorotaxane Linkers with Variable Conformations".INORGANIC CHEMISTRY 59.6(2020):4058-4067. |
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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