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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: Int J Radiat Biol. 2014 Feb 10;90(6):433–445. doi: 10.3109/09553002.2014.884293

Figure 2.

Figure 2

(A) ESR spectrum (black) of a γ-irradiated (1.4 kGy, 77 K) matched sample (for Figure 1) of 5-Me-2′-dC (2 mg/ml) in the presence of excess K2S2O8 at the native pD (ca. 5) in the homogeneous glassy solution of 7.5 M LiCl in D2O. (B) Spectrum (black) of the sample in (A) after annealing to ca. 155 K for 10 min. (C) Using photoflood lamp, photoexcitation of the sample in (B) at 143 K for 30 min. (D) The spectrum (black) obtained after subtraction of line components of Cl2•− and C-CH2• from spectrum C and is assigned to C3′•. The simulated (gray) C3′• spectrum obtained using three isotropic β-proton HFCC is superimposed on the black spectrum for comparison.