Fig. 4: In situ DRIFTS study of 10%NH2-MIL during heating up to 600 °C. | Nature Communications

Fig. 4: In situ DRIFTS study of 10%NH2-MIL during heating up to 600 °C.

From: Selective ligand removal to improve accessibility of active sites in hierarchical MOFs for heterogeneous photocatalysis

Fig. 4

a Example spectra taken at room temperature (RT), 300 °C and 550 °C. b Selected IR bands and their corresponding thermal evolution plots. The insets show a schematic representation of the structural feature as revealed by DFT simulations: the bands correspond to OH groups that are H-bonded to trapped DMF molecules (3660 cm−1), free OH groups formed after DMF removal (3682 cm−1), and OH groups formed after partial or complete cleavage of the BDC-NH2 linker from the cluster (3615 cm−1).

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