Fig. 2. A superimposed and normalized EPR spectrum of a 0.02 M aqueous solution of a 1 : 1 mixture of Cu(OTf)2 and DAT (in black, obtained at 9.36 GHz) and a normalized solid state spectrum of Vulcan|Cu(DAT) (in grey, obtained at 9.37 GHz). The inset depicts a zoom of the spectra between 600 and 2400 Gauss. Both spectra were obtained at 77 K.
