Figure 5.

(a) Set of difference scattering signals ΔS(Q, Δt) acquired for [Fe(terpy)₂]²⁺, color-coded according to time delay. The inset shows the evolution of the HS fraction obtained from the magnitude of the solute-related contribution to the difference scattering signal as a function of time delay. (b) ΔS(Q, Δt = 1 ns) (black circles) and the best-fit simulated difference signal for both of the suggested HS structures (red = ⁵B₂, green = ⁵E). (c) Each of the three contributions to the simulated difference signal, with the two solute-related difference signals again shown in red (⁵B₂) and green (⁵E). Bulk solvent contributions are shown in light Δρ × ΔS_Δρ and dark blue ΔT × ΔS_ΔT.