摘要
采用微波促进法首次制备了以β-环糊精(CDs)为主体、水杨醛缩间氨基苯酚(SMA)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.研究表明二者形成摩尔比为1∶1的包合物,并且求得包合物的结合常数Ka为4.4×103L/mol.包合物在水溶液中具有更好的溶解性能和稳定性.同时,从微环境的角度比较研究了不同溶剂对SMA包合前后的UV光谱的影响以及不同pH值的变化对SMA和包合物的影响特征.结果表明溶液中微环境的不同对客体及超分子包合物的电子光谱有着显著而不同的影响.
The structure of the inclusion complex of salicylaldehyde m-aminophenol （SMA） and β-cyclodextrin formed under microwave irradiation was studied by the UV, IR and XRD methods. The association constant of the complex is 4.44×10^3 L/mol in water and they form a 1 ： 1 inclusion complex with the Benesi-Hildebrand method. In addition, the enhanced water solubility and stability of the complex were found. Furthermore, the influence of different solvents and pH on UV spectrum of SMA, SMA/（β-CD） complex was discussed, respectively. The results show that different microenvironment has apparently different effects on electric spectra of guest and inclusion complex.
出处
《分子科学学报》
CAS
CSCD
2006年第5期317-322,共6页
Journal of Molecular Science
基金
国家自然科学基金资助项目(2004410021)
宁夏自然科学基金资助课题(2004-ZD01)
