Non-synergistic photocatalysis of CO2-to-CO conversion by a binuclear complex of rigidly linking two cobalt catalytic centers

Bimetallic Molecular Catalyst Design for Carbon Dioxide Reduction

“…A longer CoÀ Co distance of 14.8 Å (based on DFT) in catalyst 25 with rigid meta phenyl alkynyl bridge similarly showed no synergistic effect. [64] A TON of 360 and 92 % CO selectivity was achieved using Ir(ppy) 3 PS and TEA SED in DMF, which is not significantly different from the monometallic analogue when normalized to the same metal concentration.…”

Cobalt-based tripodal complexes as molecular catalysts for photocatalytic CO2 reduction

“…However, 21-CoCo exhibited similar activity per Co center to that of its mononuclear analogue, 22-Co (Table 1, entry 29), demonstrating that the two Co( ii ) centers in 21-CoCo might mediate CO 2 reduction independently, which is also supported by control experiments and mechanistic studies. Wang et al 30 also tailored another bis-tripodal ligand which incorporated two Co( ii ) centers to give 23-CoCo . They designed the dinucleating ligand by covalently linking two 1-Co moieties to meta positions of a benzene by two rigid alkynyl groups.…”

Metal–organic frameworks (MOFs) for photoelectrocatalytic (PEC) reducing carbon dioxide (CO2) to hydrocarbon fuels

“…Catalytic technologies, [9][10][11][12][13][14][15] including thermal catalysis (TC), [16][17][18][19] photocatalysis (PC), [20][21][22][23][24][25][26] electrocatalysis (EC), [27][28][29][30][31][32] and PEC, can convert CO 2 into higher-value-added products and realize the resource utilization of CO 2 . However, the CO 2 molecule has a stable linear symmetric structure due to the sp hybridization between the C and O atoms, and the energy needed to break the CvO bond is typically large (750 kJ mol −1 ).…”