fig3

Figure 3. Thermal evolution of the metal center in macrocycle compound and ZIF-8 revealed by XAS. (A) In-Temperature Fe K-edge XANES, and (B) EXAFS spectra of FeTMPPCl^[54], reproduced from Ref.^[54] with permission. Copyright 2016 American Chemical Society. (C) Temperature-dependent Zn K-edge XANES, and (D) EXAFS spectra of ZIF-8 treated at different temperatures after acid wash^[55], reproduced from Ref.^[55] with permission. Copyright 2020 Elsevier.