赵淑婷, 李媚, 曾志, 张培, 唐陆, 陈坤, 蒋腊生. 新型二酰胺穴醚与吡啶N-氧化物的络合作用研究[J]. 华南师范大学学报（自然科学版）, 2014, 46(6): 85-92.
引用本文: 赵淑婷, 李媚, 曾志, 张培, 唐陆, 陈坤, 蒋腊生. 新型二酰胺穴醚与吡啶N-氧化物的络合作用研究[J]. 华南师范大学学报（自然科学版）, 2014, 46(6): 85-92.
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Studies on the Complexation of Novel Crown ether-based Cryptands withPyridine N-oxides[J]. Journal of South China Normal University (Natural Science Edition), 2014, 46(6): 85-92.
Citation: Studies on the Complexation of Novel Crown ether-based Cryptands withPyridine N-oxides[J]. Journal of South China Normal University (Natural Science Edition), 2014, 46(6): 85-92.
shu

新型二酰胺穴醚与吡啶N-氧化物的络合作用研究

Studies on the Complexation of Novel Crown ether-based Cryptands withPyridine N-oxides

    摘要
  • 摘要: 通过大环化合物4和9分别与5-叔丁基间苯二甲酰氯反应得到了新型穴醚5和10,并通过氢谱、碳谱、低分辨质谱和高分辨质谱进行了结构表征.采用ESI-MS和1H NMR方法研究了主体化合物穴醚5和10与客体吡啶N-氧化物的相互作用,通过核磁滴定测定了主客体络合物的络合常数.实验结果表明:穴醚5和10都能与吡啶N-氧化物形成1:1络合物,而且对于相同的客体,环状空腔较大的主体化合物10的络合常数Ka比主体化合物5的络合常数大23倍.

     

    Abstract: Two novel cryptands were synthesized by reaction of di-benzylamines of Two novel cryptands were synthesized by reaction of di-benzylamines of Bis(m-phenylene-26crown-8 and Bis(m-phenylene-32crown-10 with 5-tert-butyl-iso-phthaloyl dichloride. The structures of them were confirmed by NMR and ESI-MS spectra. The complexation behavior of the cryptand hosts with pyridine N-oxide guests were analyzed by ESI-MS and 1H NMR. The results shown that both of the cryptand hosts can bind the guests to form 1:1 complexes; for the same guest, the binding ability of host 10 (with larger ring cavity) is 23 times larger than that of host 5

     

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