Isothermal and non-isothermal techniques in kinetic studies of reactions in a photoactive molecular material

Citation
A. Lewanowicz et al., Isothermal and non-isothermal techniques in kinetic studies of reactions in a photoactive molecular material, J INCL P MA, 35(1), 1999, pp. 139-146
Citations number
18
Categorie Soggetti
Chemistry
Journal title
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
ISSN journal
13883127 → ACNP
Volume
35
Issue
1
Year of publication
1999
Pages
139 - 146
Database
ISI
SICI code
1388-3127(1999)35:1<139:IANTIK>2.0.ZU;2-4
Abstract
The kinetics of thermally driven reactions in a crystalline photochromic so lid, 1-methyl-2,4,4,6-tetraphenyl-1,4-dihydropyridine (DHP), has been studi ed. The processes have been monitored by measuring the isothermal bleaching of coloured species produced upon UV irradiation of DHP, and by measuring the heat flow in non-isothermal differential scanning calorimetry experimen ts. Signatures of two processes were detected; a combination of quantum-che mical calculations and spectroscopic measurements allowed us to attribute t hem to reactions occurring in the photochromic system.