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Cover Picture: Absolute Asymmetric Photocyclization of a Photochromic Diarylethene Derivative in Single Crystals (Angew. Chem. Int. Ed. 14/2003)
Author(s) -
Yamamoto Satoshi,
Matsuda Kenji,
Irie Masahiro
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200390373
Subject(s) - diarylethene , photochromism , enantiomer , photochemistry , derivative (finance) , materials science , irradiation , cover (algebra) , crystal (programming language) , chemistry , physics , stereochemistry , quantum mechanics , computer science , mechanical engineering , financial economics , engineering , economics , programming language
Absolute Asymmetric Photochromism in chiral crystals has enormous potential. The cover picture shows this phenomenon for 1,2‐bis(2‐methyl‐5‐(3‐formylphenyl)‐3‐thienyl)perfluorocyclopentene, which has no chiral resources, but forms chiral crystals. Upon UV irradiation the diarylethene unit undergoes the photochromic reaction both in the single crystals and in solution, and each chiral crystal gives one enantiomer. The photocyclization/cycloreversion cycle can be repeated by using UV and visible light alternately. Details of the study are reported by M. Irie et al. on page 1636 ff.