Fig 2. Composite ESR spectra of A (all components of reaction mixture present)-C (dAdo absent). Computer simulation and the deconvolution of the ESR spectrum.

The spectrum obtained is a sum of three radical adducts as indicated. It consists of one component with a^N1=15.4, a^N2=2.6, $a_{\beta }^{\mathrm{H}}=19.9$, implying the formation of a radical adduct formed by the dAdo-derived nitrogen radical and also contains two non-2′-deoxyadenosine-derived components: the DMPO/·OH adduct with a^N=14.9 and =14.9 and one minor species with a^N=14.6, a^H=1.0 attributed to DMPO ring opening