【摘要】 以 2 ,3或 4 醛基吡啶和不同长度碳链的二胺为原料 ,合成了一系列的N ,N′ 二 (吡啶甲基 )二氨基烷烃 .以核磁共振技术为研究手段 ,系统考察了瓜环 (cucurbit[n =5～ 8]urils)为主体 ,链状多元胺化合物N ,N′ 二 (吡啶甲基 ) -二氨基烷烃为客体的主客体包结实体自组装过程 ,对其中具有特殊结构的主客体包结实体进行了详细描述 ,实验结果表明 ,对于不同瓜环与不同的客体相互作用 ,所形成的主客体包结配合物的结构各不相同 ,不仅如此 ,某一特定瓜环与某一特定客体相互作用 ,所形成的主客体包结配合物的结构也有可能是多种模式的 .这些结构还得到ESMS质谱分析的支持 .更多还原

【Abstract】 A series of N,N′-bis(pyridylmethyl)-diaminoalkanes have been synthesized from 2,3 or 4-pyridinecarboxaldehyde and different diamines. The possibility of self-assembly psedorotaxanes of cucurbit[n=5～8]urils with rod materials has been investigated by using NMR techniques. Here the rod materials or guests are polyamines of N,N′-bis(pyridylmethyl)-diaminoalkane. The structures of the host-guest complexes of the cucurbit[n=5～8]urils with the rods were discussed in details. The experimental rsults revealed that different interaction models could be formed from different cucurbit[n=5～8]urils and different N,N′-bis(pyridylmethyl)-diaminoalkanes, also multiple interaction models could be formed from a certain cucurbit[n]uril and a certain N,N′-bis(pyridylmethyl)-diaminoalkane. These suggestions for the interaction models were supported by the ESMS spectroscopy.更多还原