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Conformational Control of Photochromic Reactivity in a Diarylethene Single Crystal
Author(s) -
Kobatake Seiya,
Matsumoto Yoshimichi,
Irie Masahiro
Publication year - 2005
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.200462426
Subject(s) - diarylethene , photochromism , isomerization , conformational isomerism , reactivity (psychology) , photoisomerization , photochemistry , chemistry , single crystal , materials science , crystallography , molecule , organic chemistry , catalysis , medicine , alternative medicine , pathology
The deck is stacked in favor of future photonic devices. Novel photochromic crystals comprise alternating layers of two conformations of diarylethene 1 a . Irradiation with UV light induces isomerization of only one conformer to the blue‐colored, closed‐ring form, 1 b . This selective reactivity is ascribed to the difference in distance between the reactive carbon atoms of the two conformers.