A Pillar[6]arene-[2]pseudorotaxane Based pH-Sensitive Molecular Switch  

作　　者：Huanqing Chen Xueshun Jia Chunju Li 

机构地区：[1]Department of Chemistry,Shanghai University,Shanghai 200444,China

出　　处：《Chinese Journal of Chemistry》2015年第3期343-345,共3页中国化学（英文版）

摘　　要：A novel pH-responsive[2]pseudorotaxane based on ethylated pillar[6]arene and bis(1,2,3-triazolium)butane cation was constructed.The dethreading and rethreading could be reversibly controlled by adding base and acid,i.e.,the deprotonation and reprotonation of the guest.In contrast,such responsible switching behavior does not occur for the complexation between the guest and ethylated pillar[5]arene,since both the cationic axle and the deprotonated one can be strongly bound by ethylated pillar[5]arene.Furthermore,the bis(1,2,3-triazolium)butane⊂pillar[6]-arene-[2]pseudorotaxane can also disassemble upon the addition of competitive ethylated pillar[5]arene.

关 键 词：pillararene pseudorotaxane PH-SENSITIVE molecular switch 

分 类 号：O63[理学—高分子化学]