Donor-Flexible Nitrogen Ligands for Efficient Iridium-Catalyzed Water Oxidation Catalysis

Navarro Blasco, Miquel; Li, Mo; Müller-Bunz, Helge; Bernhard, Stefan; Albrecht, Martin (2016). Donor-Flexible Nitrogen Ligands for Efficient Iridium-Catalyzed Water Oxidation Catalysis. Chemistry - a European journal, 22(20), pp. 6740-6745. Wiley-VCH 10.1002/chem.201600875

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A pyridylideneamide ligand with variable donor properties owing to a pronounced zwitterionic and a neutral diene-type resonance structure was used as a dynamic ligand at a Cp* iridium center to facilitate water oxidation catalysis, a reaction that requires the stabilization of a variety of different iridium oxidation states and that is key for developing an efficient solar fuel device. The ligand imparts high activity (nearly three-fold increase of turnover frequency compared to benchmark systems), and exceptionally high turnover numbers, which indicate a robust catalytic cycle and little catalyst degradation.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Navarro Blasco, Miquel and Albrecht, Martin

Subjects:

500 Science > 540 Chemistry

ISSN:

0947-6539

Publisher:

Wiley-VCH

Funders:

[18] European Research Council
[42] Schweizerischer Nationalfonds

Projects:

[1134] Exploiting Synergistic Properties of Mesoionic Carbene Complexes: Teaching Rusty Metals Challenging Catalysis
[1131] Mesoionic ligands as versatile promoters for energy-relevant oxidation catalysis

Language:

English

Submitter:

Eik Szee Goh Aschauer

Date Deposited:

24 Jan 2017 11:20

Last Modified:

26 Mar 2019 14:46

Publisher DOI:

10.1002/chem.201600875

PubMed ID:

26919306

BORIS DOI:

10.7892/boris.93807

URI:

https://boris.unibe.ch/id/eprint/93807

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