Electron paramagnetic resonance study of gamma-irradiated potassium hydroquinone monosulfonate single crystal


ÇALIŞKAN B., Caliskan A. C. , Er E.

RADIATION EFFECTS AND DEFECTS IN SOLIDS, vol.171, pp.440-450, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 171
  • Publication Date: 2016
  • Doi Number: 10.1080/10420150.2016.1203924
  • Journal Name: RADIATION EFFECTS AND DEFECTS IN SOLIDS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.440-450
  • Keywords: EPR, potassium hydroquinone monosulfonate ( PHM), radiation damage center, hyperfine coupling constant, spectroscopic splitting factor, ISOTROPIC HYPERFINE INTERACTIONS, OXIDOREDUCTASE COMPLEX-I, AROMATIC FREE-RADICALS, L-GLUTAMIC ACID, SPIN-RESONANCE, AQUEOUS ELECTROCHEMISTRY, REDUCTIVE ACTIVATION, BIOCHEMICAL SYSTEMS, SPECTRA, DERIVATIVES
  • Gazi University Affiliated: Yes

Abstract

Gamma-irradiated potassium hydroquinone monosulfonate (PHM) single crystals were investigated between 125 and 300 K using the electron paramagnetic resonance (EPR) technique. Between 125 and 300 K no changes in the spectra have taken place. The spectra were found to be temperature independent. The investigation of EPR spectra of irradiated single crystals of PHM showed the presence of two PHM anion radicals. The g values of the radiation damage centers observed in the PHM single crystal and the hyperfine structure constants of the free electron with nearby protons were obtained.