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Gil‐Sepulcre M, Garrido‐Barros P, Oldengott J, Funes‐Ardoiz I, Bofill R, Sala X, Benet‐Buchholz J, Llobet A. Consecutive Ligand‐Based Electron Transfer in New Molecular Copper‐Based Water Oxidation Catalysts. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marcos Gil‐Sepulcre
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
| | - Pablo Garrido‐Barros
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
| | - Jan Oldengott
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
| | - Ignacio Funes‐Ardoiz
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departamento de Química Centro de Investigación en Síntesis Química (CISQ) Universitad de La Rioja 26006 Logroño Spain
| | - Roger Bofill
- Departament de Química Universitat Autònoma de Barcelona Cerdanyola del Valles 08193 Barcelona Spain
| | - Xavier Sala
- Departament de Química Universitat Autònoma de Barcelona Cerdanyola del Valles 08193 Barcelona Spain
| | - Jordi Benet‐Buchholz
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
| | - Antoni Llobet
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Universitat Autònoma de Barcelona Cerdanyola del Valles 08193 Barcelona Spain
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Gil-Sepulcre M, Garrido-Barros P, Oldengott J, Funes-Ardoiz I, Bofill R, Sala X, Benet-Buchholz J, Llobet A. Consecutive Ligand-Based Electron Transfer in New Molecular Copper-Based Water Oxidation Catalysts. Angew Chem Int Ed Engl 2021; 60:18639-18644. [PMID: 34015172 PMCID: PMC8456863 DOI: 10.1002/anie.202104020] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/17/2021] [Indexed: 11/16/2022]
Abstract
Water oxidation to dioxygen is one of the key reactions that need to be mastered for the design of practical devices based on water splitting with sunlight. In this context, water oxidation catalysts based on first‐row transition metal complexes are highly desirable due to their low cost and their synthetic versatility and tunability through rational ligand design. A new family of dianionic bpy‐amidate ligands of general formula H2LNn− (LN is [2,2′‐bipyridine]‐6,6′‐dicarboxamide) substituted with phenyl or naphthyl redox non‐innocent moieties is described. A detailed electrochemical analysis of [(L4)Cu]2− (L4=4,4′‐(([2,2′‐bipyridine]‐6,6′‐dicarbonyl)bis(azanediyl))dibenzenesulfonate) at pH 11.6 shows the presence of a large electrocatalytic wave for water oxidation catalysis at an η=830 mV. Combined experimental and computational evidence, support an all ligand‐based process with redox events taking place at the aryl‐amide groups and at the hydroxido ligands.
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Affiliation(s)
- Marcos Gil-Sepulcre
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Pablo Garrido-Barros
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Jan Oldengott
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Ignacio Funes-Ardoiz
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.,Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universitad de La Rioja, 26006, Logroño, Spain
| | - Roger Bofill
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Valles, 08193, Barcelona, Spain
| | - Xavier Sala
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Valles, 08193, Barcelona, Spain
| | - Jordi Benet-Buchholz
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Antoni Llobet
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Valles, 08193, Barcelona, Spain
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