Figure 5
Photo-reduction of the dinuclear Cu(II) dioxygen complex of Hu et al. (2001). The spectra shown in the upper panel, a, b and c, correspond to the structures shown in the lower panel. (a) First sweep of a Cu K-edge XAS spectrum recorded on SSRL BL9-3 after about 7 min of beam exposure (the spectra did not change on subsequent sweeps). (b) Spectrum of a related Cu(II) species with similar metal coordination. (c) Spectrum of the dinuclear species recorded on the lower-flux SSRL BL7-3. |