title: Iodide-Photocatalyzed Reduction of Carbon Dioxide to Formic Acid with Thiols and Hydrogen Sulfide.
abstract: The photolysis of iodide anions promotes the reaction of carbon dioxide with hydrogen sulfide or thiols to quantitatively yield formic acid and sulfur or disulfides. The reaction proceeds in acetonitrile and aqueous solutions, at atmospheric pressure and room temperature by irradiation using a low-pressure mercury lamp. This transition-metal-free photocatalytic process for CO2capture coupled with H2S removal may have been relevant as a prebiotic carbon dioxide fixation.
authors.affiliation: Departamento de Química Orgánica, Universidad de Valencia, Avda. Vicente Andrés Estellés s.n., 46100-, Burjassot, Valencia, Spain.
authors.forename: Mateo
authors.identifier: http://orcid.org/0000-0002-9983-3656
authors.initials: M
authors.lastname: Berton
authors.affiliation: Departamento de Química Orgánica, Universidad de Valencia, Avda. Vicente Andrés Estellés s.n., 46100-, Burjassot, Valencia, Spain.
authors.forename: Rossella
authors.identifier: http://orcid.org/0000-0002-0293-2018
authors.initials: R
authors.lastname: Mello
authors.affiliation: Departamento de Química Orgánica, Universidad de Valencia, Avda. Vicente Andrés Estellés s.n., 46100-, Burjassot, Valencia, Spain.
authors.forename: María Elena
authors.identifier: http://orcid.org/0000-0003-4170-4568
authors.initials: ME
authors.lastname: González-Núñez
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D002384:Catalysis; D005561:Formates / Q000737:chemistry*; D006862:Hydrogen Sulfide / Q000737:chemistry*; D007454:Iodides / Q000737:chemistry*; D010084:Oxidation-Reduction; D055668:Photochemical Processes; D013438:Sulfhydryl Compounds / Q000737:chemistry*
chemical_list: D005561:Formates; D007454:Iodides; D013438:Sulfhydryl Compounds; C030544:formic acid; D002245:Carbon Dioxide; D006862:Hydrogen Sulfide
keywords: carbon dioxide fixation; photocatalysis; potassium iodide; reduction; thiols