Solvent effects on the crystal photochromism of 4,4′-methylenebis{(N-3,5-di-tert-butylsalicylidene)-2,6-dimethylaniline}

Solvent effects on the crystal photochromism of... 4,4′-methylenebis{N-(3,5-di-tert-butylsalicylidene)-2,6-dimethylaniline} formed a definite acetone-inclusion crystal by recrystallization with acetone. Through crystal-to-crystal solvent exchange of the crystal, various types of crystals were obtained. All resulting crystals exhibited photochromism. Rate constants of thermal fading of photochromes were found to depend on the number of solvent molecules included in the crystal unit. The thermal stability of photochrome is discussed in connection with molecular mobility in the crystal lattice. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Solvent effects on the crystal photochromism of 4,4′-methylenebis{(N-3,5-di-tert-butylsalicylidene)-2,6-dimethylaniline}

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Publisher
Springer Netherlands
Copyright
Copyright © 2009 by Springer Science+Business Media BV
Subject
Chemistry; Inorganic Chemistry ; Physical Chemistry ; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-009-0058-0
Publisher site
See Article on Publisher Site

Abstract

4,4′-methylenebis{N-(3,5-di-tert-butylsalicylidene)-2,6-dimethylaniline} formed a definite acetone-inclusion crystal by recrystallization with acetone. Through crystal-to-crystal solvent exchange of the crystal, various types of crystals were obtained. All resulting crystals exhibited photochromism. Rate constants of thermal fading of photochromes were found to depend on the number of solvent molecules included in the crystal unit. The thermal stability of photochrome is discussed in connection with molecular mobility in the crystal lattice.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Aug 11, 2009

References

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