β-环糊精及其衍生物与TNS超分子包络物研究  

Study on supramolecular inclusion complexes of β-CD and its derivatives with TNS

作　　者：孙延春[1] 

机构地区：[1]四川理工学院化学与制药工程学院,四川自贡643000

出　　处：《化学研究与应用》2009年第10期1447-1450,共4页Chemical Research and Application

摘　　要：Spectrofluorometric titration and continuous variation were used to study supramolecular inclusion complexes of β-CD and its derivatives with 2-p-toluidinglnaphthalene-6-sulfonate(TNS).The stoichiometry,stability constants and configuration of supramolecular inclusion complexes were discussed.The results suggest that β-CD and its derivatives form 1∶1 supramolecular inclusion complexes with TNS in aqueous solutions.The hydrophobic interactions and van der Waals forces determine the stability of supramolecular inclusion complexes.The size fit between the hosts and the guest plays important roles in the formation of the supramolecular inclusion complexes.Spectrofluorometric titration and continuous variation were used to study supramoleeular inclusion complexes of β-CD and its derivatives with 2-p-toluidinglnaphthalene-6-sulfonate （TNS）. The stoichiometry, stability constants and configuration of supramolecular inclusion complexes were discussed. The results suggest that β-CD and its derivatives form 1 ： 1 supramolecular inclusion complexes with TNS in aqueous solutions. The hydrophobic interactions and van der Waals forces determine the stability of supramolecular inclusion complexes. The size fit between the hosts and the guest plays important roles in the formation of the supramolecular inclusion complexes.

关 键 词：Β-环糊精 TNS 荧光光谱 超分子包络物 

分 类 号：O657.3[理学—分析化学]