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Original Article

E.S.R. Studies of Free Radicals Derived from Reaction of OH with Uracil and Thymine

Pages 651-659 | Received 06 Feb 1980, Accepted 28 May 1980, Published online: 03 Jul 2009
 

Summary

Short-lived free radicals produced in N2O-saturated aqueous solutions of uracil and thymine have been studied using the in situ radiolysis steady-state e.s.r. method. Radicals formed in alkaline aqueous solutions by OH addition to either positions C(5) or C(6) were observed. Mechanisms for the formation of transient species were derived. The spin density distribution of the unpaired electron was calculated by means of the INDO method.

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