β-环糊精与水杨醛缩邻氨基苯酚包结行为的荧光光谱法研究  

Fluorecence Study on Inclusion Behavior of β-Cyclodextrin with Salicylaldehyde o-Aminophenol

作　　者：陈小燕[1] 马兰英[1] 刘万毅[1] 

机构地区：[1]宁夏大学能源化工重点实验室化学化工学院,宁夏银川750021

出　　处：《化学世界》2011年第6期338-341,共4页Chemical World

基　　金：宁夏大学科学研究基金资助项目((E)ndzr09-32)

摘　　要：采用微波促进法制备了以β-环糊精为主体、水杨醛缩邻氨基苯酚(SOA)为客体的超分子包合物,通过多种谱学方法对固体包合物进行了表征。利用荧光光谱探讨了β-环糊精(-βCD)与SOA间的超分子相互作用,研究表明二者形成摩尔比为1∶1的包合物,考察了温度对其包结平衡常数的影响,计算得到热力学常数并深入讨论了包结过程的驱动力及可能的包结物结构。结果显示,包结平衡常数随温度的升高而减小,热力学常数表明整个包结过程是焓、熵联合驱动的过程。The structure of the inclusion complex of salicylaldehyde o-aminophenol（SOA） and β-cyclodextrin formed under microwave irradiation was studied by IR,XRD and fluorimetric methods.They form an 1∶1 inclusion complex as evidenced in the variation of the fluorescence intensity and the modified Benesi-Hildebrand＇s equation.In addition,the enhanced water solubility and stability of the complex were found.Furthermore,the influence of temperature on association constant was studied.The results showed that the constant decreased gradually with rising temperature.The thermodynamic parameters indicate that the inclusion is induced by enthalpy and entropy.

关 键 词：水杨醛缩邻氨基酚(SOA) β-环糊精(-βCD) 包合物 平衡常数 驱动力 

分 类 号：O657.3[理学—分析化学] O642.1[理学—化学]