A chromogenic molecular capsule attributable to dipolar amide resonance structure.
A new chromogenic, self-assembled molecular capsule G@22 is developed by introducing four (N,N-dimethyl-4-aminophenyl) azobenzyl moieties on the upper rim of a resorcin[4]arene-based amidoimino-cavitand. The tuning of conjugation between amido and (N,N-dimethyl-4-aminophenyl)azobenzyl groups by acid-base titration allows naked-eye detection of molecular capsule formation.
Department of Chemistry, Soongsil University, Seoul 156-743, Korea. kpaek@ssu.ac.kr.
Yeon Sil
YS
Park
Juwan
J
Park
Kyungsoo
K
Paek