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) identifier 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, Isonipecotic acid, Radiation damage center, Free radical, HINDERED INTERNAL-ROTATION, SPIN-RESONANCE, THYMINE DERIVATIVES, SUCCINIC ACID, FREE-RADICALS, METHYL GROUP, EPR, SPECTRA, ESR, THYMIDINE
  • Gazi 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 Co-60-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. (C) 2014 Elsevier B.V. All rights reserved.