ChemInform Abstract: PHOTOCHEMICAL FREE RADICAL FORMATION FROM ALIPHATIC DICARBOXYLIC ACIDS IN SOLUTION AS STUDIED BY ELECTRON SPIN RESONANCE SPECTROSCOPY

Autor:	H. Paul, Lotty Wymann, Tony Kaiser, Hanns Fischer
Rok vydání:	1982
Předmět:	Solvent Aqueous solution law Chemistry Radical General Medicine Polarization (electrochemistry) Cleavage (embryo) Electron paramagnetic resonance Photochemistry Spectroscopy Free Radical Formation law.invention
Zdroj:	Chemischer Informationsdienst. 13
ISSN:	0009-2975
DOI:	10.1002/chin.198201125
Popis:	Various free radicals formed during UV.-irradiation of aliphatic dicarboxylic acids in aqueous and methanolic solution are identified by ESR.-spectroscopy. Their structures point to α-cleavage and photoreduction as the dominant primary photochemical decay processes. The relative contributions of these reactions to the overall photodecomposition depend on solvent and degree of α-alkylation of the acid. Emission ESR.-spectra are found for radicals formed by C, CO-bond cleavage of α-dimethyl substituted acids. The polarization is referred to the triplet mechanism of CIDEP. and indicates this cleavage reaction occurs from a triplet molecular state.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7eea47682ad653e87063229e631d99b7 https://doi.org/10.1002/chin.198201125 Zobrazit plný text záznamu Plný text