Influence of polarity of medium on formation of intermediates in photolysis of alkylaminobenzophenones in solutions

Autor:	V. M. Granchak, T. S. Kotsyuba, I. I. Dilung
Rok vydání:	1997
Předmět:	chemistry.chemical_compound Ketyl Absorption spectroscopy Chemistry Yield (chemistry) Radical Kinetics Photodissociation Flash photolysis General Chemistry Photochemistry Sodium perchlorate
Zdroj:	Theoretical and Experimental Chemistry. 33:26-29
ISSN:	1573-935X 0040-5760
Popis:	Flash photolysis has been used in a study of the absorption spectra and decay kinetics of the intermediates in photolysis of 4,4′-bis-dimethylaminobenzophenone, 4,4′-bis-diethylaminobenzophenone, and 4-dimethylamino-benzophenone in various types of solvents. It has been established that flash photolysis of solutions of alkylaminobenzophenones in polar solvents produces not only alkylamine or ketyl radicals, but also an intermediate that absorbs in the 470 nm region, the decay curves of which are described by first-order kinetic equations. In the presence of tertiary amines, the yield of this product is lower. The addition of sodium perchlorate to the solution increases the lifetime of this intermediate species.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::524e926bc0ad882b8b3da4ee5907e860 https://doi.org/10.1007/bf02764739 Zobrazit plný text záznamu Full text from SpringerLink