Photochromism of 1-methyl-2,4,4,6-tetrap
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S. NeΕ‘pΕ―rek; W. Schnabel
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Article
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1991
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Elsevier Science
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English
β 614 KB
The photochromic behaviour of l-methyl-2,4,4,6-tetraphenyl-1,4-dihydropyridine (DHP) in the solid state is described. The time dependence of the colour decay process is analysed in terms of a dispersive first-order chemical reaction. The non-exponential dependence can be accounted for by a Gaussian