Paramagnetic centres in the irradiated organic substances

Authors
Contineanu, M
Citation
M. Contineanu, Paramagnetic centres in the irradiated organic substances, REV CHIM, 50(6), 1999, pp. 405-410
Citations number
7
Categorie Soggetti
Chemical Engineering
Journal title
REVISTA DE CHIMIE
ISSN journal
00347752 → ACNP
Volume
50
Issue
6
Year of publication
1999
Pages
405 - 410
Database
ISI
SICI code
0034-7752(199906)50:6<405:PCITIO>2.0.ZU;2-7
Abstract
The paper presents the results obtained by EPR spectroscopy applied to the study of the SeO2 radicals formed at the gamma irradiation of pollycristall ine Na2SeO3. 5H(2)O. Additional information about the nature of paramagneti c centers were obtained with the reflectance spectra recorded on irradiated and non irradiated samples. The radicals thermal disappearance kinetics is presented and an adequate radiolysis mechanism is proposed. Spin densities on selenium and oxygen atoms were calculated.