Structure and behaviour of the free radicals generated in gamma irradiated amino acid and iminodiacetic acid derivatives

Osmanoğlu, Şemsettin; Aydin, Murat; Osmanoğlu, Y. Emre; Dicle, I. Yeşim; Başkan, M. Halim

doi:10.1016/j.saa.2011.02.016

Cited by 14 publications

(2 citation statements)

References 27 publications

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“…But they were obtained using the simulation method a α = 1.39 mT a β = 0.68 mT, a OH = 0.43 mT and g value measured was g = 2.0041. Hyperfine parameters and g value in this radical are similar to the alkyl radical obtained in (28,32) The spectrum simulated with these hyperfine parameters is presented in Figure 3(b). The experimental and simulated EPR spectra are seen to agree with each other (3a, 3b).…”

Section: Resultssupporting

confidence: 67%

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The effect of gamma radiation of amino acid derivatives in the solid state: an EPR study

Dicle¹,

Osmanoğlu²

2014

Radiation Effects and Defects in Solids

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The spectroscopic features of free radicals produced in gamma irradiation of the N-methyl-dlalanine, N,N -dimethyl glycine hydrochloride and d -( + ) -galactosamine hydrochloride were investigated at room temperature at the dose 15 kGy using EPR technique. The paramagnetic species observed in these compounds were identified as CH 3Ċ HCOOH,ĊHOH(CHOH) 3 NH 2 (CH) 2 O, and (CH 3 ) 2 NĊHCOOH.HCl, respectively. A comparison with a new paramagnetic species recently observed and characterized in irradiated amino acids indicates that the new radical presented here has a similar structure. In this paper, we have also studied the stability of these compounds at room temperature after irradiation.

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Section: Resultssupporting

confidence: 67%

“…The hyperfine constants and g value of the radical discussed here seem to agree well with the literature values of alanine and its Downloaded by [Colorado College] at 18:05 02 February 2015 derivatives. (25)(26)(27)(28)(29) When the sample was cooled to 130 K, the spectrum of N-methyl-dl-alanine remained unchanged.…”

Section: Resultsmentioning

confidence: 99%