Effect of the physical state on the scavenging of quasi-free electrons by a solute

Autor:	Vsevolod M. Byakov, Leonid A. Kulikov, Yu. D. Perfil’ev, Sergey V. Stepanov
Rok vydání:	2013
Předmět:	Free electron model Reaction rate constant Chemical physics Chemistry Yield (chemistry) Reactivity (chemistry) Electron Emission spectrum Physical and Theoretical Chemistry Atomic physics Scavenging Ion
Zdroj:	High Energy Chemistry. 47:152-155
ISSN:	1608-3148 0018-1439
DOI:	10.1134/s0018143913040103
Popis:	The reactivity of carbon tetrachloride toward quasi-free electrons generated during the decay of 57Co atoms in its alcohol solutions frozen at 80 K has been studied by Mossbauer emission spectroscopy. It has been found that an increase in CCl4 concentration to 10 mol/L slightly affects the yield of 57Fe2+ and 57Fe3+ ions as 57Co decay products. The inertness of CCl4 has been interpreted as a consequence of a change of the energy state of quasi-free track electrons results from freezing the alcohol solution. This effect inhibits the dissociative attachment reaction of scavenging of track electrons and increases the ground-state energy of quasi-free electrons (on passing to the frozen matrix), thereby fundamentally altering the energy balance of the electron scavenging reaction in comparison with the liquid medium and, hence, decreasing the rate constant of electron scavenging by CCl4.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36ab3be2388b786465538a45ed19acc9 https://doi.org/10.1134/s0018143913040103 Zobrazit plný text záznamu Plný text ve formátu PDF