title: The rates of electron transfer from ClUra- and ClUraH-to p-nitroacetophenone.
abstract: Pulse-radiolysis experiments demonstrate that both the radical ion CIUra-/- and the protonated radical CIUraH- Of chlorouracil will transfer electrons to p-nitroacetophenone (PNAP). The reaction of CIUraH- is complicated by unknown reaction with PNAP below pH 4-4. Rate constants measured for reactions (2) and (3) are kappa2=5-3 x 109 and kappa3=3-3 x 109 M-1 sec -1. See article. An independent determination of the rate-constant for dissociation of the radical ion (equation (1)) was also obtained (kappa1=0-7 x 105 sec -1). See article.
mesh_terms: D000098:Acetophenones / Q000528:radiation effects; D004579:Electron Transport; D011830:Radiation Effects; D014498:Uracil / Q000031:analogs & derivatives* / Q000528:radiation effects
chemical_list: D000098:Acetophenones; D014498:Uracil