Fig. 4: Investigation of the scope of the photocatalytic CO2-to-CO conversion. | Nature Communications

Fig. 4: Investigation of the scope of the photocatalytic CO2-to-CO conversion.

From: Unlocking full and fast conversion in photocatalytic carbon dioxide reduction for applications in radio-carbonylation

Fig. 4: Investigation of the scope of the photocatalytic CO2-to-CO conversion.The alternative text for this image may have been generated using AI.

Green colored circles and numbers denote the positions of the carbon atoms labeled and the percent incorporation of the carbon isotope. See Supplementary pages 40–45. Conditions in Ch1, for A, B, C, E, F: [13C]CO2 (0.36 mmol), BIH (0.87 mmol, 2.4 equiv.); phenol (2.0 mmol, 5.5 equiv.); Ru PS (0.45 mol%, 1.62 µmol); Re(CO)3(bpy)Br Re cat (0.45 mol%, 1.62 µmol), phosphine P2 (0.036 mmol, 0.1 equiv.) in ACN. Conditions in Ch1, for D: [13C]CO2 (0.44 mmol), BIH (0.95 mmol, 2.12 equiv.); phenol (2.44 mmol, 5.5 equiv.); Ru PS (0.45 mol%, 1.95 µmol); Re(CO)3(bpy)Br Re cat (0.45 mol%, 1.95 µmol), phosphine P2 (0.044 mmol, 0.1 equiv.) in ACN. aConditions in Ch1: [13C]CO2 (0.60 mmol), BIH (1.56 mmol, 2.60 equiv.); phenol (4.0 mmol, 6.6 equiv.); Ru PS (0.54 mol%, 3.3 µmol); Re(CO)3(bpy)Br Re cat (0.53 mol%, 3.2 µmol), phosphine P2 (0.072 mmol, 0.12 equiv.) in ACN. bSee Supplementary page 94.

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