β-环糊精与苯基偶氮(4-偶氮-1)-2-萘酚(苏丹红Ⅲ)相互作用的光谱研究  

Study of Inclusion Complex Formation between 1-[4-(Phenylazo)phenyl]azo-2-naphthalene(Sudan Ⅲ) and β-Cyclodextrin by Spectrophotometry and Infrared Spectroscopy

作　　者：韩娟[1] 赵虎[1] 庞艳玲[2] 王怀友[1] 

机构地区：[1]山东师范大学化学化工与材料科学学院化学系,山东济南250014 [2]菏泽学院化学系,山东菏泽274015

出　　处：《分析测试学报》2007年第3期377-380,共4页Journal of Instrumental Analysis

基　　金：山东省自然科学基金资助项目(Y2006B31)

摘　　要：利用分光光度法研究了苯基偶氮(4-偶氮-1)-2-萘酚(苏丹红Ⅲ)与β-环糊精的包合机理。用红外光谱法确认了主体分子对客体分子的包合深度。结果表明:苯基偶氮(4-偶氮-1)-2-萘酚与β-环糊精形成1∶1的包容络合物,包合常数为7.95×102L/mol,求出了包合反应热力学参数ΔG,ΔH及ΔS,整个包合过程受熵变控制。The mechanism of the inclusion of 1 - [ 4- （phenylazo） phenyl azo-2-naphthalene （ Sudan Ⅲ ） and β-cyclodextrin has been studied by spectrophotometry. The inclusion depth of the guest molecule in the host molecule was confirmed by infrared spectrophotometry. The result showed that 1-[4-（phenylazo） phenyl] azo-2-naphthalene reacted with β-cyclodextrin to form a 1 ： 1 host - guest complex with an apparent formation constant of 7.95 × 10^2 L/mol. The thermodynamic parameters of inclusion reaction, △G^θ, △H^θ and △S^θ were obtained. The inclusion process was controlled by entropy change.

关 键 词：苯基偶氮(4-偶氮-1)-2-萘酚 Β-环糊精 包容络合物 分光光度法 红外光谱法 苏丹红Ⅲ 

分 类 号：O657.32[理学—分析化学] TE626.21[理学—化学]