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Abstract

The cover picture depicts the photocatalytic CO2 reduction by three cobalt‐based homogeneous molecular complexes with different coordination microenvironment. Under irradiation, [CoN3O]ClO4 shows better photocatalytic activity for CO2 reduction to CO, higher than that of [CoN4]ClO4, and [CoN3S]ClO4. Combining experimental and DFT calculations, it was possible to draw the conclusion that by modifying the direct coordination heteroatoms (O, N, S) of catalysts, the intermediate C—OH bond breakage was accelerated, improving the activity toward CO generation. More details are discussed in the article by Zhong et al. on page 3305—3310.image