Self-Aggregation, Enhanced Guest-Binding Behavior, and Anion-Induced Agglutination of Cyclophane Dimers Linked with Florescent Perylene Diimide
Osamu Hayashida,
Yuya Araki,
Takaaki Miyazaki
Abstract:Cationic, anionic, and nonionic cyclophane dimers, 1a, 1b, and 1c, covalently linked with fluorescent perylene diimide were synthesized, respectively, as a host for aggregation-induced multivalent effects on guest-binding. These PDI-linked cyclophane dimers 1a and 1b, especially 1c, formed self-aggregates in H 2 O-rich solvents through π-stacking interactions. Critical aggregation concentrations of 1a, 1b, and 1c in H 2 O were 4.0 × 10 −6 , 4.0 × 10 −6 , and less than 0.1 × 10 −6 M, respectively. The selfaggre… Show more
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