| Dinuclear Chloride-Binding Foldamers Based on Fluorescent Oligoureas | |
| Department | OSSO国家重点实验室 |
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; Wu B(吴彪)
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| The second department | erc国家工程研究中心 |
| 2013 | |
| Source Publication | European Journal of Organic Chemistry
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| ISSN | 1434-193X |
| Issue | 17Pages:3446-3454 |
| Abstract | 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. |
| Keyword | Foldamers Host-guest Systems Helical Structures Anion Coordination Anions |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1002/ejoc.201300043 |
| Funding Organization | the National Natural Science Foundation of China (NSFC) (grant number 21271149) |
| Indexed By | SCI |
| If | 3.154 |
| Language | 英语 |
| Funding Project | 金属有机功能材料研究组;日常管理与大型仪器组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4716 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） 精细石油化工中间体国家工程研究中心（ERC） |
| Corresponding Author | Wu B(吴彪) |
| Affiliation | 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 |
| Recommended Citation 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,&吴彪.(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. |
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| File Name/Size | DocType | Version | Access | License | ||
| Eur. J. Org. Chem. 2（888KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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