Photoequilibrium and the Decay Mechanism in Dinitrobenzyl Pyridine Photochromism

Autor:	R. Hardwick, David Ben‐Hur
Rok vydání:	1972
Předmět:	Maximum intensity Photochromism chemistry.chemical_compound Photon chemistry Pyridine General Physics and Astronomy Irradiation Physical and Theoretical Chemistry Photochemistry
Zdroj:	The Journal of Chemical Physics. 57:2240-2246
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.1678573
Popis:	The maximum intensity of photochromic color change in 2‐ and 4‐(2′, 4′‐dinitrobenzyl) pyridine solutions is controlled by a photon equilibrium. The equilibrium has been approached from both sides by means of irradiation. Solutions of the compound almost entirely in the form of its colored modification have been prepared. In the absence of photon activated decay, which is controlling in experiments where the preparation is made photolytically, these solutions decay thermally to the ordinary form by two mechanisms, the relative importance of which depends on temperature and pH.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::11ab6ac6fdf633251f75fd72280418af https://doi.org/10.1063/1.1678573 Zobrazit plný text záznamu