Microstructure of monolayered aggregate of 5-(4-carboxyphenyl)-10,15,20-triphenylporphine self-assembled at the toluene/water interface
Tania Avianda Gusman,
Satoshi Tsukahara
Abstract:5-(4-Carboxyphenyl)-10,15,20-triphenylporphine (TPPCOOH) was acid-dissociated and its salt with alkali metal ions (TPPCOO−M+, M+=Li+, Na+, and K+) formed ordered needlelike monolayered aggregates at the toluene/water interface under alkaline conditions. The light absorption of the aggregates at 451 nm depended on the polarization direction. The dependence revealed 2 types of TPPCOO−M+ aggregates with different growth direction, but their microstructure and interfacial concentration were almost the same. The he… Show more
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