MOLECULAR RECOGNITION BY AMPHIPHILIC CYCLODEXTRINS IN LANGMUIR-BLODGETT-FILMS

Azobenzene derivatives were recognized by amphiphilic cyclodextrins (CDs) in LB films. The amount of ortho isomer of methyl red incorporated in the LB film was very small for any of the CDs used, whereas considerable amounts of the para and meta isomers were kept in the films, most of which were included in the cavity. The size of the cavity of the CDs was reflected in the out-of-plane anisotropy and the peak shift in the polarized absorption spectra of the LB films of the CDs containing the azobenzene derivatives.