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Switching of Polymorph‐Dependent ESIPT Luminescence of an Imidazo[1,2‐ a ]pyridine Derivative
Author(s) -
Mutai Toshiki,
Tomoda Haruhiko,
Ohkawa Tatsuya,
Yabe Yuji,
Araki Koji
Publication year - 2008
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.200803975
Subject(s) - luminescence , pyridine , intramolecular force , derivative (finance) , solid state , excited state , photochemistry , chemistry , materials science , optoelectronics , organic chemistry , physics , business , finance , nuclear physics
Reproducible switching of the polymorph‐dependent excited‐state intramolecular proton‐transfer (ESIPT) luminescence of an imidazo[1,2‐ a ]pyridine between blue‐green and yellow (see picture) is achieved by thermal control of its solid‐state molecular packing. Thus, ESIPT is a promising mechanism for packing‐to‐luminescence transduction and amplification that offers a novel design concept for tunable organic luminescent solids.