The threading of cyclodextrin (CD) to convert from intramolecular to intermolecular hydrogen bonding leads to the self-assembly of an inclusion complex (IC). A chiral cholesteryl-E-4-(11-acryloxy-undecaloxy)-cinnamate (CAUC) monomer containing a photoisomerizable C C bond and a cholesteryl terminal group was synthesized andthreaded with β-CD to form an inclusion complex. The synthesized IC forms a rod-like construction because of the enhanced intermolecular hydrogen bonding. After UV irradiation, the self-assembled rod structure changed to a spherical structure because of the change in the molecular polarity and intermolecular forces. The bent structure of Z-CAUC may release some of the threaded CDs and lead to a decrease in intermolecular forces. Due to a high energy barrier, the E-Z configurational photoisomerization of CAUC is irreversible.
All Science Journal Classification (ASJC) codes
- Materials Science(all)