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Tetranuclear Uranyl Polyrotaxanes: Preferred Selectivity toward Uranyl Tetramer for Stabilizing a Flexible Polyrotaxane Chain Exhibiting Weakened Supramolecular Inclusion
Mei L(梅雷); Wang L(王琳); Zhao YL(赵宇亮); Chai ZF(柴之芳); Shi WQ(石伟群); Mei, L; Wang, L; Liu, CM; Zhao, YL; Chai, ZF; Shi, WQ
2015
发表期刊CHEMISTRY-A EUROPEAN JOURNAL
卷号21期号:28页码:10226-10235
通讯作者柴之芳 ; 石伟群
文章类型Article
摘要Introduction of mechanically interlocked components into actinide-based metal-organic materials such as polyrotaxanes will generate an entirely new type of inorganic-organic hybrid materials showing more supramolecular encapsulation-based dynamics. In this work, tetranuclear uranyl-directed polyrotaxanes (UO2)(4)O-2-C5A3-CB6 (1) and (UO2)(4)O-2-C6A3-CB6 (2), which are the first actinide pseudorotaxanes with high-nuclearity uranium centers, were obtained through systematic extension of the string spacer in pseudorotaxane ligands from 1,4-butylene (C4) to 1,5-pentylene (C5) and 1,6-hexylene (C6). Both of the as-synthesized tetranuclear uranyl polyrotaxanes were structurally characterized and analyzed. Considering the structure of UO2-C4A3-CB6 and the 1,4-butylene string spacer, the preference for the uranyl tetramer may be related to the configurational inversion of the pseudorotaxane ligands from trans mode to cis mode on coordination to the uranyl center. Detailed structural analysis suggests that the length of the stretched string molecules for CB6-encapsulated pseudorotaxanes has remarkable effect on the supramolecular inclusion interactions and the configurations of pseudorotaxanes, and should be responsible for the configurational inversion of pseudorotaxane spacers and subsequent distinct changes of the uranyl building units and geometric structures.
关键词chain structures organic-inorganic hybrid composites rotaxanes supramolecular chemistry uranium
学科领域Chemistry
DOI10.1002/chem.201500343
收录类别SCI ; EI ; CA
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000357026700036
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228608
专题院士
多学科研究中心
中国科学院高能物理研究所_中国散裂中子源
推荐引用方式
GB/T 7714
Mei L,Wang L,Zhao YL,et al. Tetranuclear Uranyl Polyrotaxanes: Preferred Selectivity toward Uranyl Tetramer for Stabilizing a Flexible Polyrotaxane Chain Exhibiting Weakened Supramolecular Inclusion[J]. CHEMISTRY-A EUROPEAN JOURNAL,2015,21(28):10226-10235.
APA 梅雷.,王琳.,赵宇亮.,柴之芳.,石伟群.,...&Shi, WQ.(2015).Tetranuclear Uranyl Polyrotaxanes: Preferred Selectivity toward Uranyl Tetramer for Stabilizing a Flexible Polyrotaxane Chain Exhibiting Weakened Supramolecular Inclusion.CHEMISTRY-A EUROPEAN JOURNAL,21(28),10226-10235.
MLA 梅雷,et al."Tetranuclear Uranyl Polyrotaxanes: Preferred Selectivity toward Uranyl Tetramer for Stabilizing a Flexible Polyrotaxane Chain Exhibiting Weakened Supramolecular Inclusion".CHEMISTRY-A EUROPEAN JOURNAL 21.28(2015):10226-10235.
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