| 2,6-二苯乙炔基-4-异丁氧基吡啶寡聚物与银离子的配位行为 |
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| 作者姓名： | 李巧连 黄甫 尚洁 何裕建 |
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| 作者单位： | 1. 中国科学院大学化学与化学工程学院, 北京 100049;2. 北京师范大学化学学院, 北京 100875;3. 北京大学天然药物及仿生药物国家重点实验室, 北京 100191 |
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| 基金项目： | 国家自然科学基金(21272263)和北京大学天然药物及仿生药物国家重点实验室开放基金(K20140204)资助 |
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| 摘 要： | 设计合成一系列含有2,6-二苯乙炔基-4-异丁氧基吡啶结构单元的寡聚物分子,包括单体化合物及其二聚体和三聚体分子,并通过1H-NMR、1 3C-NMR、HR-ESI-MS对它们进行表征.通过1H-NMR滴定实验、Job's Plot实验及HR-ESI-MS实验对寡聚物与银离子之间的配位行为进行研究,发现3个寡聚物分子在银离子诱导下都可以形成三螺旋结构,而且异丁氧基的引入可以显著增强寡聚物与银离子的配位能力.
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| 关 键 词： | 折叠体 螺旋 银离子 配位作用 |
| 收稿时间： | 2014-12-24 |
| 修稿时间： | 2015-01-23 |
Coordination behavior between 2,6-bis(phenylethynyl)-4-isobutoxy-pyridine oligomers and Ag(I) |
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| Authors: | LI Qiaolian HUANG Fu SHANG Jie HE Yujian |
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| Institution: | 1. School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;2. College of Chemistry, Beijing Normal University, Beijing 100875, China;3. State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China |
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| Abstract: | A series of 2,6-bis(phenylethynyl)-4-isobutoxy-pyridine oligomers, including monomer, dimer, and trimer, were prepared and characterized with 1H and 13C NMR spectroscopies and HR-ESI mass spectrometries, respectively. A combination of 1H-NMR titration experiments, Job's Plot experiments, and HR-ESI mass spectrometries confirmed that the oligomers were able to form triple-stranded helical structures in the presence of silver ions in solution and indicated that the coordination ability of the oligomers were significantly enhanced due to isobutoxy group. |
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| Keywords: | foldamers helicates silver ions coordination |
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