title: Fibrous architectures and organogels of tris(phenylethynylphenyl)adamantane molecules with amino acid moieties: their solvato-controlled helicity induction.
abstract: Non-disk-shaped molecules self-assembled to form columnar-type helical aggregates with gel ability through π-stacking interactions among the central tris(phenylethynylphenyl)adamantane moieties, hydrogen-bonding interactions among the alanine parts with amide groups, and van der Waals interactions among the alkyl groups in nonpolar n-alkanes. The structural analyses of fibrous architectures with helicity were examined by FTIR, UV-Vis, and circular dichroism (CD) spectroscopy and FE-SEM measurements. In contrast, the formation of fibrous structures was observed from adamantane-based tripodal molecules due to solvophobic interactions in polar EtOH, which showed no detectable Cotton effect in the CD measurement, indicating the induction of solvato-controlled helicity in the self-assembly process.
authors: Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki, Kagawa, Japan. tominagam@kph.bunri-u.ac.jp
authors: Masahide
authors: M
authors: Tominaga
authors: Isao
authors: I
authors: Azumaya