Fig. 1.
(A) Three-dimensional molecular structure of the Ru–Co complex [(CN)4 RuII(tpphz)CoIII(CN)4]3−, which is a simplified model of that studied in refs. 21–23. The D→B and B→A ET steps are represented by the blue and green arrows, respectively. The B→A ET step is aided by an X-ray pulse shot at the Co center. The coordinate axes are also shown. Color code: Ru, light blue; Co, pink; N, deep blue; C, black; H, light gray. (B) Chemical structure of the Ru–Co complex. The donor, bridge, and acceptor fragments are labeled and shaded with different colors.