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Circularly Polarized Luminescence of Rhodamine B in a Supramolecular Chiral Medium Formed by a Vortex Flow
Author(s) -
Okano Kunihiko,
Taguchi Makoto,
Fujiki Michiya,
Yamashita Takashi
Publication year - 2011
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.201104708
Subject(s) - luminescence , rhodamine , supramolecular chemistry , clockwise , vortex , rhodamine b , materials science , optics , nanotechnology , optoelectronics , physics , chemistry , crystallography , mechanics , fluorescence , organic chemistry , amplitude , photocatalysis , crystal structure , catalysis
Sucked into the vortex : Hydrogels with embedded Rhodamine B dye showed stir‐induced circularly polarized luminescence (CPL; see picture), the sense of which can be controlled by switching the stir direction from clockwise (CW) to counterclockwise (CCW) with slow cooling from the sol to gel states. The chiral alignment of the dye was erased by heating the sample above the gel–sol transition temperature.