Figure 3
Selected interatomic distances (Å) as a function of phase t of the modulation. (a) The O—H and N—H distances within the two hydrogen bonds. (b) C—C and C—O distances of the resonance system stabilizing the Hca− anion, as well as the C6—O2 distance not involved in resonance. Notice the different length scale on the vertical axes for panels (a) and (b). |