| 二甲基苯甲酰亚甲基溴锍盐与瓜环的相互作用研究 |
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| 引用本文： | 余洁莲,吕利宾.二甲基苯甲酰亚甲基溴锍盐与瓜环的相互作用研究[J].贵州大学学报(自然科学版),2014,31(5):28-32. |
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| 作者姓名： | 余洁莲 吕利宾 |
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| 作者单位： | 贵州大学化学与化工学院,贵州省大环和超分子重点实验室,贵州贵阳550025 |
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| 基金项目： | 教育部“春晖计划”项目 |
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| 摘 要： | 利用^1H NMR技术、等温滴定量热（ITC）法和紫外吸收光谱等手段,研究了瓜环与二甲基苯甲酰亚甲基溴锍盐的相互作用.结果表明：Q7]与二甲基苯甲酰亚甲基溴锍盐相互作用时,将其苯环包进Q7]内腔内,形成1∶1的包结物.而Q8]将两个二甲基苯甲酰亚甲基溴锍盐的两个苯环包进其内腔内形成1∶2的包结物.进一步通过热分析发现,包结物形成后,能够增强瓜环和二甲基苯甲酰亚甲基溴锍盐的热稳定性.
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| 关 键 词： | 二甲基苯甲酰亚甲基溴锍盐 瓜环 热分析 1H NMR技术 |
Study on Interaction Systems of Dimethylphenacylsulfonium Bromide with Cucurbituril |
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| YU Jie-lian,LV Li-bin.Study on Interaction Systems of Dimethylphenacylsulfonium Bromide with Cucurbituril[J].Journal of Guizhou University(Natural Science),2014,31(5):28-32. |
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| Authors: | YU Jie-lian LV Li-bin |
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| Institution: | ( Key Laboratory of Macrocyclic and Supramolecular Chemistry of Gnizhou Province, College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China) |
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| Abstract: | The host-guest interaction of the cucurbit n ] uril （ n = 7 and 8 ） and the dimethylphenacyl sulfonium bromide were studied in detail by using 1 H NMR technique, the electronic absorption spectroscopy and isothermal titration calorimetry. The results reveal that the cucurbit n ] uril （ n = 7 and 8 ） included the aryl moieties of the dimethylphenacyl sulfonium bromide and formed inclusion complexes. It is convincingly shown that the ratio of the cucurbit n ] uril （ n = 7 and 8 ） and the dimethylphenacyl sulfonium bromide was 1 ： 1 and 1 ： 2, respectively. Furthermore, the results reveal that the thermal stability of the cucurbiturils and the dimethylphenacyl sulfonium bromide in the inclusion complexes was enhanced by using thermal analysis. |
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| Keywords: | dimethylphenacyl sulfonium bromide cucurbituril thermal analysis 1 H NMR technique isothermal titration calorimetry |
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