Photochromic and thermochromic spiranes. 20.* Photochromic properties of solid-phase films of novel formyl-substituted spiropyrans of the indoline series View Full Text


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Article Info

DATE

1996-03

AUTHORS

A. V. Metelitsa, N. V. Voloshin, N. E. Shelepin, M. I. Knyazhanskii, V. I. Minkin

ABSTRACT

We have synthesized novel forrnyl-substituted spiropyrans of the indoline series. We have obtained solid phase amorphous films of the synthesized spiropyrans bv thermal vacuum deposition and established their capacity for photochrornic transformations. We have investigated the effect of the substituents on the spectral properties of the original and colored forms of the solid-phase spiropyran films. We have shown that the kinetic characteristics of the photochromic transformations of these compounds in solid-phase films depend considerably on the bulk of the substituents in the indoline and benzopyran moieties, and also their electron active properties in the latter. Along with reversible processes, in the solid-phase spiropyran films we have observed irreversible photoreactions leading to degradation of the photochromic system. More... »

PAGES

346-351

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf01169257

DOI

http://dx.doi.org/10.1007/bf01169257

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1003767425


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