A time-resolved Raman study of the reaction of hydroxyl radicals with p-phenylenediamine

Autor:	R. H. Schuler, G. N. R. Tripathi, Q. Sun
Rok vydání:	1990
Předmět:	Radical ion Absorption spectroscopy Chemistry Radical Radiolysis General Engineering Reaction intermediate Physical and Theoretical Chemistry Radiation chemistry Photochemistry Chemical reaction Adduct
Zdroj:	The Journal of Physical Chemistry. 94:2216-2217
ISSN:	1541-5740 0022-3654
DOI:	10.1021/j100368a089
Popis:	In a previous study of the reaction of OH with aromatic diamines the absorption spectrum attributed to the OH adducts was reported to be virtually identical with that of the radical cations, differing only in intensity. Here we apply pulse radiolysis methods with time-resolved resonance Raman detection to examine the intermediates formed in the OH oxidation of p-phenylenediamine. These studies show that in neutral and basic solution the OH adducts, if formed, have a very short lifetime, that the absorption spectrum previously assigned to the OH adduct is, in fact, that of the radical cation, and that this radical cations does not protonate in moderately acidic solutions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ba93b782e6267590e2248665ec6366a https://doi.org/10.1021/j100368a089 Zobrazit plný text záznamu