Host-guest complexation between ionic liquid (IL) 1-butyl-3-methylimidazolium octylsulphate [Bmim][OS] and cyclodextrins (α- and β- CDs) have been studied. Surface tension, conductivity measurements revealed the formation of 1:1M stoichiometry for inclusion complexes (ICs) and further confirmed by UV-Visible and FT-IR results. The nature of the complexes has been established using interfacial and thermodynamic parameters. The aggregation number, Stern-Volmer constants, association constants were obtained from fluorescence quenching and Benesi-Hildebrand methods. The critical micelle concentration (cmc) and association constants of [Bmim][OS] are higher for β-CD as compared to α-CD. FT-IR spectra indicated that CDs and [Bmim][OS] could from ICs with stoichiometry (1:1M).

中文翻译：

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离子液体1-丁基-3-甲基咪唑鎓辛基硫酸盐与α-和β-环糊精的超分子包合络合

研究了离子液体（IL）1-丁基-3-甲基咪唑鎓辛基硫酸盐[Bmim] [OS]与环糊精（α-和β-CD）之间的主客体络合。表面张力，电导率测量揭示了包合物（IC）的化学计量比为1：1M的形成，并通过紫外可见光和FT-IR结果进一步证实。配合物的性质已使用界面和热力学参数确定。聚集数，Stern-Volmer常数，缔合常数是通过荧光猝灭和Benesi-Hildebrand方法获得的。与α-CD相比，β-CD的临界胶束浓度（cmc）和[Bmim] [OS]的缔合常数更高。FT-IR光谱表明CD和[Bmim] [OS]可以来自具有化学计量比（1：1M）的IC。