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. 2017 Apr 4;7:612. doi: 10.1038/s41598-017-00574-1

Figure 4.

Figure 4

Characterization of the photocatalytic conversion mechanism in Re-MOF-NH2 (33%). (a) EXAFS spectra for Re-MOF, Re-MOF-NH2 (33%) and Re-MOF-NH2 (80%). (b) Electrostatic potential diagram for Re-MOF-NH2 (33%) where the ReTC inside is asymmetric. (c) IR spectra of Re-MOF-NH2 (33%) under vacuum and CO2 atmosphere. (d) Difference IR spectra of Re-MOF, Re-MOF-NH2 (33%) and Re-MOF-NH2 (80%) in the presence of CO2. (e) Electrostatic potential diagram of the intermolecular stabilization of carbamate by the -NH2 functional groups before making CO in Re-MOF-NH2 (33%).