摘要
本文报道了有机分子BBOT(2,5-bis(5′-tert-butyl-2-benzoxazoyl)thiophene)与α-、β-、γ-环糊精(cyclodextrins,CDs)的相互作用.BBOT可以与这3种环糊精进行不同方式的组装:BBOT与α-CD形成1:2(客体:主体)包合物;当BBOT浓度较低时与β-CD形成1:1包合物,浓度较高时则与β-CD形成纳米管及二次组装体;对于γ-CD而言,在我们所研究的BBOT浓度范围内都可与其形成纳米管及二次组装体.研究发现,BBOT-β-CD纳米管和BBOT-γ-CD纳米管的结构存在一定差异.
The study of cyclodextrin nanotubes is a significant topic among the self-assembly behaviors of cyclodextrins.We report herein the interaction of 2,5-bis（5＇-tert-butyl-2-benzoxazoyl） thiophene（BBOT） withα-,β-,γ-cyclodextrins（CDs） .It has been discovered that the reaction patterns of BBOT with CDs are remarkably different. α-CD forms a simple inclusion complex with BBOT in a stoichiometry of 1：2（vip：host） .β-CD forms a 1：1 inclusion complex with BBOT at its low concentration.At higher concentration of BBOT,the nanotube and secondary assembly ofβ-CD are formed.As forγ-CD,the nanotube and secondary assembly are formed within the whole concentration range of BBOT studied.The structure ofγ-CD nanotubes is different from that ofβ-CD nanotubes to a certain extent.
出处
《中国科学：化学》
CAS
CSCD
北大核心
2010年第11期1604-1612,共9页
SCIENTIA SINICA Chimica
基金
国家自然科学基金项目(29901001
20871009)的资助
