Figure 3: Characterization of C(3)-amido Blatter-type radical.

(a) X-ray crystal structure of 3 showing two orientations of the phenyl group in the solid state and weak hydrogen bonds in the stack of molecules. (b) EPR spectrum of 3 in dioxane at 343 K. (c) SOMO in 3 with contours plotted at ±0.07 (e/bohr3)1/2. (d) Spin density distribution in 3 with contours plotted at ±0.008 (e/bohr3)1/2.