Kinetics of photochromic reactions in condensed phases

A review of kinetic data reported for a few organic photochromic systems is given. The kinetics of processes taking place in solid matrices and in crystals was briefly discussed. The effect of solid matrices manifests itself in the kinetics being controlled by distributions rather than by discrete r...

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Bibliographic Details
Published in:Advances in colloid and interface science 2005-11, Vol.116 (1), p.97-110
Main Authors: Sworakowski, J., Janus, K., Nešpůrek, S.
Format: Article
Language:English
Subjects:
Chemistry
Color
Crystal
Exact sciences and technology
General and physical chemistry
Kinetics
Molecular Structure
Organic Chemicals - chemistry
Organic Chemicals - radiation effects
Photochemistry
Photochromism
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
Polymer matrix
Rate constant
Surface Properties
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Summary:A review of kinetic data reported for a few organic photochromic systems is given. The kinetics of processes taking place in solid matrices and in crystals was briefly discussed. The effect of solid matrices manifests itself in the kinetics being controlled by distributions rather than by discrete rate constants. The photochromic reactions often require a substantial free volume to occur, hence they seldom take place in crystals without a destruction of the crystal lattice. The activation energies of thermally driven reactions are in this case related rather to crystal parameters than to the reactions themselves.
ISSN:0001-8686
1873-3727
DOI:10.1016/j.cis.2005.04.003