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Time sequence of the Hydrogen abstraction at t = 0, t = 0.1 ps, and t = 0.5 ps are shown for simulations in vacuum (a,b,c) and in the presence of water (d,e,f). The Hydrogen bonds formed between water molecules in solution and the OH-guanine molecules is shown by dashed lines. The numbers in the figures denote the bond distances. The hydrogen bonds elongate the time for hydrogen abstraction.
