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. Author manuscript; available in PMC: 2015 Dec 14.
Published in final edited form as: Phys Chem Chem Phys. 2010;12(20):5353–5368. doi: 10.1039/b925496j

Figure 1.

Figure 1

ESR spectra obtained at 77 K for the one-electron oxidized 1-Me-Guo by Cl2•− (A, B) at various pDs in 7.5 M LiCl glasses in D2O in the presence of the electron scavenger K2S2O8. Figure (C) represents the UV-visible absorption spectra of the same samples of one-electron oxidized 1-Me-Guo – 1-Me-G•+ (red) and 1-Me-G(N2-H)• respectively at 77 K in 7.5 M LiCl glass/D2O. In Table 1, the ESR parameters, hyperfine couplings and g-values, used for the simulated spectra (black) are given. Our results clearly show that 1-Me-G•+ is found at pDs ≤5 and 1-Me-G(N2-H)• is formed at pDs 8–12. The ESR spectra as well as the UV-vis spectra were recorded at 77 K. The three reference markers showing the ESR spectra in this Figure and in subsequent Figures containing ESR spectra are Fremy's salt resonances with central marker is at g= 2.0056, and each of three markers is separated from one another by 13.09 G.