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Keywords:

  • carbon dioxide fixation;
  • enzyme models;
  • organic hydrides;
  • photochemistry;
  • ruthenium
Thumbnail image of graphical abstract

Ruthenium will fix it: CO2 undergoes reduction to HCO2 when placed over a solution of a ruthenium complex bearing an NADH model ligand 1 (black in right structural formula). The organic hydride transfer is triggered by the addition of benzoate anion, which rapidly forms a complex with 1, a complex that is a stronger reductant than 1. A photocatalytic variant of the reaction using triethanolamine as a sacrificial reagent has also been developed.