ESR of gamma irradiated single crystals of cholesteryl acetate and cholesteryl chloroformate
Cholesteryl acetate and cholesteryl chloroformate compounds have been irradiated with 60Co-γ 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 ĊHCH2 radical for cholesteryl acetate and ĊH3 and ĊHCH2 CH2 CH2 radicals for cholesteryl chloroformate.
Keywords: C28 H45 ClO2; C29 H48 O2; Cholesteryl acetate; Cholesteryl chloroformate; ESR; Isotropic hyperfine coupling constant, a; Spectroscopic splitting factor, g; Spin density, ρ; ĊH3; ĊHCH2; ĊHCH2 CH2 CH2
Document Type: Research Article
Affiliations: 1: Gazi University Department of Physics, Faculty of Science 06530 Beşevler Ankara Turkey 2: Turkish Atomic Energy Authority Beşevler Ankara Turkey 3: Ankara University Department of Physics, Faculty of Sciences 06100 Tandoğan Ankara Turkey
Publication date: 01 November 2003
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