| 反式七元瓜环与N,N'-二苄基-4,4'-联吡啶氯化物的络合行为研究 |
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| 引用本文： | 高中政,杨立国,白东,陈丽霞,陶朱,肖昕.反式七元瓜环与N,N'-二苄基-4,4'-联吡啶氯化物的络合行为研究[J].高等学校化学学报,2017,38(2):212. |
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| 作者姓名： | 高中政 杨立国 白东 陈丽霞 陶朱 肖昕 |
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| 作者单位： | 1. 贵州大学贵州省大环化学及超分子化学重点实验室, 贵阳 5500252. 安阳工学院化学与环境工程学院, 安阳 455000 |
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| 基金项目： | 国家自然科学基金(批准号: 21561007)、 河南省高等学校重点科研项目计划(批准号: 16A150001)、 贵州大学研究生创新基金(批准号: 研理工2016008)和贵州省高层次创新型人才培养计划(批准号: 2016-5657)资助 |
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| 摘 要： | 利用核磁共振技术、 紫外-可见吸收光谱、 荧光发射光谱、 等温量热滴定及基质辅助激光解吸电离飞行时间质谱(MALDI-TOF MS)等方法研究了N,N'-二苄基-4,4'-联吡啶氯化物(G1, 客体分子)与反式七元瓜环(iQ7], 主体分子)的相互作用及形成的主客体包结配合物的结构特征. 结果表明, 客体分子两端的苄基部分分别进入iQ7]的空腔, 而4,4'-联吡啶则一部分被iQ7]的空腔所包结, 另一部分处于iQ7]的端口, 形成包结比为2:1的哑铃型主客体超分子组装体.
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| 关 键 词： | 反式七元瓜环 N N'-二苄基-4 4'-联吡啶氯化物 超分子自组装 |
| 收稿时间： | 2016-06-27 |
Interaction of Inverted Cucurbit[7]uril with N,N'-dibenzyl -4,4'-pyridine Chloride† |
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| GAO Zhongzheng,YANG Liguo,BAI Dong,CHEN Lixia,TAO Zhu,XIAO Xin.Interaction of Inverted Cucurbit[7]uril with N,N'-dibenzyl -4,4'-pyridine Chloride†[J].Chemical Research In Chinese Universities,2017,38(2):212. |
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| Authors: | GAO Zhongzheng YANG Liguo BAI Dong CHEN Lixia TAO Zhu XIAO Xin |
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| Institution: | 1.Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province,Guizhou University, Guiyang 550025, China2.College of Chemistry and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China |
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| Abstract: | An inclusion complex formed on self-assembly of the inverted cucurbit7]uril(iQ7]) host with N,N′-dibenzyl-4,4′-pyridine chloride(G1) guest was investigated by 1H NMR technique, electronic absorp-tion and fluorescence spectroscopies, isothermal titration calorimetry( ITC) experiments and MALDI-TOF mass spectrometry. The experimental results showed that iQ7] can encapsulate the benzyl moiety of the guest in its hydrophobic cavity to form dumbbell-type host-guest supramolecular assembly, and the inclusion ratio is 2:1. While a part of 4,4′-bipyridine is located inside the cavity of the iQ7] host, the other part remains outside of the portal of the iQ7] host. |
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| Keywords: | Inverted cucurbit[7]uril N N′-dibenzyl-4 4′-pyridine chloride Supramolecular self-assembly |
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