Abstract

The interaction between cyclodextrins (CDs) and 1,3-di(1-naphthyl)propane (1) in aqueous methanol (V:V=1:1) has been investigated by means of fluorescence emission and UV absorption. Fluorescence enhancement and absorption spectra reveal that β- or γ-CD can form inclusion complexes with 1, but a-CD cannot. One of these complexes is identified as ground state complex (2:1), i.e. the eclipsed conformer of 1 is included. Molecule 1 can be driven out of the CD cavity by sodium dodecylsulfate (SDS) molecule, but cannot by cetyltrimethylammonium bromide (CTAB) or sodium cetylsulfate (SCS) molecules due to their alkyl chain coiling.

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