DETERMINATION OF A FRACTION OF SPIN-CORRELATED RADICAL-ION PAIRS IN IRRADIATED ALKANES BY QUANTUM OSCILLATION TECHNIQUE

Authors
USOV OM GRIGORYANTS VM TADJIKOV BM MOLIN YN
Citation
Om. Usov et al., DETERMINATION OF A FRACTION OF SPIN-CORRELATED RADICAL-ION PAIRS IN IRRADIATED ALKANES BY QUANTUM OSCILLATION TECHNIQUE, Radiation physics and chemistry, 49(2), 1997, pp. 237-243
Citations number
15
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
49
Issue
2
Year of publication
1997
Pages
237 - 243
Database
ISI
SICI code
0969-806X(1997)49:2<237:DOAFOS>2.0.ZU;2-R
Abstract
Amplitudes of quantum oscillations observed in the recombination fluor escence of the (diphenylsulfide-d(10))(+)/(p-terphenyl-d(14))(-) radic al ion pairs in alkane solutions have been used to estimate a fraction of spin-correlated singlet pairs Theta in the radiation track. Theta values of 0.36 - 0.54 for the solvent series studied were found. Value s for a fraction of singlet recombinations f(s)(0.52-0.66), calculated from Theta values, are in satisfactory agreement with those available from literature. It has been observed that Theta and f,values decreas e with increasing solvent viscosity (from n-hexane to cis-decalin). Co pyright (C) 1997 Elsevier Science Ltd