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学科主题: 物理有机化学
题名: Highly stable pseudo[2]rotaxanes co-driven by crown ether-ammonium and donor-acceptor interactions
其他题名: 冠醚-铵及供体-受体相互作用协同驱动的高度稳定的拟[2]轮烷
作者: Feng DJ(冯代军) ; Li XQ(李晓强) ; Wang XZ(王晓钟) ; Jiang XK(蒋锡夔) ; Li ZT(黎占亭)
通讯作者: 黎占亭
刊名: Tetrahedron
发表日期: 2004
卷: 60, 期:29, 页:6137-6144
收录类别: SCI
部门归属: 中国科学院上海有机化学研究所物理有机化学研究室
英文摘要: Bis-p-phenylene-34-crown-10 derivatives 1 and 2, bearing one and two dibenzo [24] crown-8 units, respectively, and 4,4'-dipyridinium derivatives of 3.3PF(6) and of 4.4PF(6), bearing one and two ammonium groups, respectively, have been synthesized from readily available starting materials. H-1 NMR and UV-vis studies reveal that in polar acetonitrile 1 binds 3.3PF6 to produce pseudo [2]rotaxane 1.3.3PF(6) by making use of one donor-acceptor and one electrostatic interaction, whereas 2 binds 4-4PF(6) to form pseudo [2] rotaxane 2.4.4PF(6) through one donor-acceptor and two electrostatic interactions. The association constants of the two pseudorotaxanes have been determined by the UV-vis titration method to be 9.1 (+/-1.0) x 10(3) M-1 and 6.5 (+/-0.7) x 10(5) M-1, respectively. The high stability of the new pseudo [2]rotaxanes has been ascribed to the cooperative interaction of the two different non-covalent forces. (C) 2004 Published by Elsevier Ltd.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000222564200011
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/12658
Appears in Collections:物理有机化学研究室_期刊论文

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Recommended Citation:
Feng DJ,Li XQ,Wang XZ,et al. Highly stable pseudo[2]rotaxanes co-driven by crown ether-ammonium and donor-acceptor interactions[J]. Tetrahedron,2004,60(29):6137-6144.
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