Structural control of μ-hydroxo-μ-peroxodicobalt(<scp>iii</scp>) complex with the 6-hpa dinucleating ligand to enhance O<sub>2</sub>-evolution activity in catalytic water oxidation
The 6-hpa ligand forms a μ-hydroxo-μ-peroxodicobalt(III) complex [Co(μ-OH)(μ-O<sub>2</sub>)(6-hpa)]X<sub>3</sub> (X = ClO<sub>4</sub> (1a) and PF<sub>6</sub> (1b)) and controls the formation of <i>syn</i> configuration. Electrochemical studies revealed that the 6-hpa ligand lowers the oxidation potential of the peroxide moiety by 0.13 V and twice enhances O<sub>2</sub> evolution during catalytic water oxidation by fixing the <i>syn</i> configuration.
Authors
- Hiroaki Kitagishi (ORCID: https://orcid.org/0000-0003-4682-7217)
- S. Shinomiya
- Tetsuya Kambe (ORCID: https://orcid.org/0000-0002-9216-2693)
- Osamu Iwanaga (ORCID: https://orcid.org/0000-0002-9026-7045)
- Minoru Kubo (ORCID: https://orcid.org/0000-0002-1470-942X)
- Masahito Kodera (ORCID: https://orcid.org/0000-0001-9979-1743)
- Sachiko Yanagisawa (ORCID: https://orcid.org/0000-0003-3688-797X)
- Shigeyuki Masaoka (ORCID: https://orcid.org/0000-0003-2678-2269)
- Yuki Tanaka (ORCID: https://orcid.org/0000-0001-9822-9804)
- Kyosuke Fujikawa
Institutions
- Doshisha University (JP)
- University of Hyogo (JP)
- The University of Osaka (JP)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5dt01140j
- Citations
- 2
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.73