Abstract

The radiation damage centers in levetiracetam, progesterone, ethosuximide, and propranolol hydrochloride were investigated by EPR spectroscopy at 295 K. The paramagnetic species were attributed to the -ĊHCHNH-, -CH2ĊH2CH- and -ĊH-, -ĊHCH2N- and-ĊH-, and -NĊCH2- radicals, respectively. The results were observed as being in good conformity with the literature. The spectra of these compounds were computer simulated. Furthermore, the EPR parameters of the radicals formed by ɣ-irradiation in the samples were determined.

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