Fig. 4. Comparisons of the Fourier transforms (FTs) of the Fe K-edge EXAFS of the DT-reduced and IDS-oxidized forms of ^ΔHΔZNifD₂K₂ (black), ^ΔHΔZNifD₂K₂W₂ (red), and ^C275ANifD₂K₂ (blue) in R-space. Spectra are k³-weighted, and FTs were performed for a k-range of 3–13 Å. No phase-shift was applied.