Fig. 2. Information on the structure dynamics of MOF-217 samples upon removing solvent molecules and introducing imidazole molecules. (A), (B), and (C) 2D SAXS images (λ = 1.540 56 Å) and Pawley refinement of experimental SAXS data for the as-synthesized MOF-217, activated MOF-217 and 28% Im-in-MOF-217, respectively, where blue circles represent experimental data; red lines represent calculated data; green lines show the difference and purple bars show the Bragg position. (D), (E), and (F) Pawley refinement of experimental synchrotron data (λ = 0.6526 32 Å) for the as-synthesized MOF-217, activated MOF-217 and 28% Im-in-MOF-217, respectively, where blue circles represent experimental data; red lines represent calculated data; green lines show the difference and purple bars show the Bragg position. (G) the single crystal structure of MOF-217 at 250 K and (H) simulated structure of MOF-217-activated. (I) the refined structure of 28% Im-in-MOF-217 determined by Rietveld refinement based on synchrotron data (λ = 0.8857 14 Å, Fig. S21†). These defined crystal structures based on X-ray diffraction data were displayed at the same direction to show the twist and sliding dynamics.