Dinuclear Chloride-Binding Foldamers Based on Fluorescent Oligoureas
文献类型：期刊论文
| 作者 | Yang PJ(杨培菊)1 ; Wang JM(王佳敏)1; Jia CD(贾传东)1; Yang XJ(杨晓娟)1,2; Wu B(吴彪)2
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| 刊名 | European Journal of Organic Chemistry
 |
| 出版日期 | 2013 |
| 期号 | 17页码:3446-3454 |
| 关键词 | Foldamers Host-guest systems Helical structures Anion coordination Anions |
| ISSN号 | 1434-193X |
| 通讯作者 | 吴彪 |
| 英文摘要 | A series of dinuclear chloride-binding foldamers – (TEA)2-[L1Cl2]·Et2O (1), (TEA)2[L2Cl2] (2), (TBA)2[L3Cl2] (3), (TBA)2-[L4Cl2] (4), [K(18-crown-6)]2[L4Cl2]·H2O (5), and (TBA)2-[L5Cl2]·H2O (6) – have been synthesized from naphthyl- and anthracenyl-decorated oligoureas (tetrakisurea to hexakisurea, L1–L5). In the crystal structures of 1–6, the oligoureas adopt helical conformations and two chloride anions are bound inside by the urea groups. The solution binding properties of L1–L5 toward chloride ion were investigated by 1H NMR and fluorescence spectroscopy. Upon binding of the anions, characteristic downfield shifts of the NH signals and enhanced fluorescent emission relative to the free ligands were observed. In DMSO solution, the ligands each display a 1:1 binding ratio to chloride, with association constants of K = 1.16–7.58_102 M–1, which contrasts with the 1:2 (host to guest) binding mode in the crystal structures. However, the formation of dinuclear foldamers in the less polar solvent CHCl3 was indicated by the HRMS (ESI) spectra. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (NSFC) (grant number 21271149) |
| 语种 | 英语 |
| WOS记录号 | WOS:000320036300004 |
| 公开日期 | 2013-12-16 |
| 源URL | [http://210.77.64.217/handle/362003/4716]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 兰州化学物理研究所_ERC国家工程研究中心 |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.NW Univ Xian, Coll Chem & Mat Sci, Xian 710069, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang PJ,Wang JM,Jia CD,et al. Dinuclear Chloride-Binding Foldamers Based on Fluorescent Oligoureas[J]. European Journal of Organic Chemistry,2013(17):3446-3454. |
| APA | Yang PJ,Wang JM,Jia CD,Yang XJ,&Wu B.(2013).Dinuclear Chloride-Binding Foldamers Based on Fluorescent Oligoureas.European Journal of Organic Chemistry(17),3446-3454. |
| MLA | Yang PJ,et al."Dinuclear Chloride-Binding Foldamers Based on Fluorescent Oligoureas".European Journal of Organic Chemistry .17(2013):3446-3454. |
入库方式： OAI收割
来源：兰州化学物理研究所
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