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a) Schematic illustration of the crystal structure of HE‐PBA. b) Dependence of configurational entropy on the number of elements. c) XRD pattern of HE‐PBA and Rietveld plot for the refinement. d) Fourier transform of the EXAFS signals collected from the HE‐PBA material, for each metal edge, plotted with a y‐axis offset for better clarity.
