ESR of gamma irradiated single crystals of cholesteryl acetate and cholesteryl chloroformate


Yigit B., Ozmen A., Ercan I., Eken M., Birey M.

RADIATION EFFECTS AND DEFECTS IN SOLIDS, cilt.158, ss.833-837, 2003 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 158
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1080/10420150310001604093
  • Dergi Adı: RADIATION EFFECTS AND DEFECTS IN SOLIDS
  • Sayfa Sayıları: ss.833-837

Özet

Cholesteryl acetate and cholesteryl chloroformate compounds have been irradiated with Co-60-gamma rays at room temperatures. The irradiated samples have been examined for paramagnetic resonance, and the observed spectra in several cases have been identified with specific radicals. The results in each case have been considered in relation to the present knowledge of the radiation chemistry of the compound. The single crystals have been investigated between 120 and 300 K. The spectra are found to be temperature independent and radiation damage centers are attributed to CHCH2 radical for cholesteryl acetate and CH3 and CHCH2CH2CH2 radicals for cholesteryl chloroformate.