Fig. 2. (a) Cd K-edge extended XAFS oscillation function k²χ(k); (b) the corresponding Fourier transforms FT(k³w(k)); (c) the IR spectrum of FJI-H9 and FJI-H9-Cd (red = FJI-H9, black = FJI-H9-Cd), V_s = 3360 cm^–1 belongs to NH, V_s = 3074 cm^–1, 2939 cm^–1, 2798 cm^–1 belong to CH₃ from [Me₂NH₂]⁺ and DMA molecules.