This catalogue entry contains the raw data within the paper "A water-soluble Manganese complex for selective electrocatalytic CO2 reduction to CO” by Cowan and coworkers presents the use of Mn-molecular catalysts based on a dicarboxylate substituted bipy framework for electrocatalytic CO2 reduction in water" Data is held in 2 files: 1 with the data for the main paper (titled data catalogue Mn_water_organomet.opj), A 2nd file (Mn_water_organomet_ESI.opj) contains data from the supprourting information. Both files were created using OriginPro 2016. The information regarding the instruments used to acquire the data is found in the main text of the paper and supporting information. All queries regarding the data should be directed to the corresponding author of the study, Dr A Cowan (acowan@liverpool.ac.uk).