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Switching the Interior Hydrophobicity of a Self‐Assembled Spherical Complex through the Photoisomerization of Confined Azobenzene Chromophores
Author(s) -
Murase Takashi,
Sato Sota,
Fujita Makoto
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200700793
Subject(s) - photoisomerization , azobenzene , chromophore , photochemistry , materials science , polymer chemistry , chemistry , polymer science , isomerization , molecule , organic chemistry , catalysis
Synergy effect : A discrete highly cationic spherical Pd 12 L 24 complex was prepared that concentrates 24 photoresponsive azobenzene units internally (see picture; shell blue, N dark blue, Pd yellow, O red, C gray, H white; azobenzene units shown as CPK models). The concentrated azobenzenes provide a hydrophobic environment in the sphere, and the degree of hydrophobicity is reversibly changed by the isomerization of the azobenzenes.