Electron paramagnetic resonance study of radiation damage in isonipecotic acid single crystal

ÇALIŞKAN B., Caliskan A. C., Yerli R.

Journal of Molecular Structure, vol.1075, pp.12-16, 2014 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 1075
  • Publication Date: 2014
  • Doi Number: 10.1016/j.molstruc.2014.06.030
  • Journal Name: Journal of Molecular Structure
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.12-16
  • Keywords: EPR, Free radical, Isonipecotic acid, Radiation damage center
  • Ankara University Affiliated: Yes

Abstract

The electron spin resonance spectra of the radical produced by gamma-irradiation of a single crystal of isonipecotic acid (piperidine-4- carboxylic acid) were reported, and the structure of the radical was discussed. Isonipecotic acid single crystals were exposed to 60Co-gamma irradiation at room temperature. The irradiated single crystals were investigated by Electron Paramagnetic Resonance (EPR) Spectroscopy between 115 K and 300 K. The spectra were found to be temperature independent. The g values of the radiation damage center observed in isonipecotic acid single crystal and the hyperfine structure constants of the free electron with nearby protons were obtained. © 2014 Elsevier B.V. All rights reserved.