An Unprecedented Two-Fold Nested Super-Polyrotaxane: SulfateDirected Hierarchical Polythreading Assembly of Uranyl Polyrotaxane Moieties

doi:10.1002/chem.201601506

	An Unprecedented Two-Fold Nested Super-Polyrotaxane: SulfateDirected Hierarchical Polythreading Assembly of Uranyl Polyrotaxane Moieties
	Wang L(王琳); Shi, WQ; Burns, PC; Chai, ZF; Hu, KQ; Xie, ZN; An, SW; Wang, L; Yuan, LY; Wu, QY
刊名	CHEMISTRY-A EUROPEAN JOURNAL
	2016
卷号	22 期号:32 页码:11329
关键词	actinides polythreading rotaxanes supramolecular chemistry uranium
DOI	10.1002/chem.201601506
通讯作者	石伟群
英文摘要	The hierarchical assembly of well-organized submoieties could lead to more complicated superstructures with intriguing properties. We describe herein an unprecedented polyrotaxane polythreading framework containing a two-fold nested super-polyrotaxane substructure, which was synthesized through a uranyl-directed hierarchical polythreading assembly of one-dimensional polyrotaxane chains and two-dimensional polyrotaxane networks. This special assembly mode actually affords a new way of supramolecular chemistry instead of covalently linked bulky stoppers to construct stable interlocked rotaxane moieties. An investigation of the synthesis condition shows that sulfate can assume a vital role in mediating the formation of different uranyl species, especially the unique trinuclear uranyl moiety [(UO2)(3)O(OH)(2)](2+), involving a notable bent [O=U=O] bond with a bond angle of 172.0(9)degrees. Detailed analysis of the coordination features, the thermal stability as well as a fluorescence, and electrochemical characterization demonstrate that the uniqueness of this super-polyrotaxane structure is mainly closely related to the trinuclear uranyl moiety, which is confirmed by quantum chemical calculations.
语种	英语
WOS记录号	WOS:000382918700032
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/261064]
专题	高能物理研究所_院士高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wang L,Shi, WQ,Burns, PC,et al. An Unprecedented Two-Fold Nested Super-Polyrotaxane: SulfateDirected Hierarchical Polythreading Assembly of Uranyl Polyrotaxane Moieties[J]. CHEMISTRY-A EUROPEAN JOURNAL,2016,22(32):11329.
APA	王琳.,Shi, WQ.,Burns, PC.,Chai, ZF.,Hu, KQ.,...&梅雷.(2016).An Unprecedented Two-Fold Nested Super-Polyrotaxane: SulfateDirected Hierarchical Polythreading Assembly of Uranyl Polyrotaxane Moieties.CHEMISTRY-A EUROPEAN JOURNAL,22(32),11329.
MLA	王琳,et al."An Unprecedented Two-Fold Nested Super-Polyrotaxane: SulfateDirected Hierarchical Polythreading Assembly of Uranyl Polyrotaxane Moieties".CHEMISTRY-A EUROPEAN JOURNAL 22.32(2016):11329.