Highly Efficient Photocatalytic Water Reduction with Robust Iridium(III) Photosensitizers Containing Arylsilyl Substituents

Waterproof complexes: Cationic IrIII photosensitizers (PSs) with an ancillary 4,4′‐bis(4‐(triphenylsilyl)phenyl)‐2,2′‐bipyridine ligand enabled hydrogen evolution from water with high turnover numbers (TONs; see scheme). The peripheral triphenylsilyl moieties prevent ligand substitution by solvent m...

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Bibliographic Details
Published in:Angewandte Chemie (International ed.) 2013-10, Vol.52 (44), p.11612-11615
Main Authors: Whang, Dong Ryeol, Sakai, Ken, Park, Soo Young
Format: Article
Language:English
Subjects:
Catalysts
Cationic
Durability
Hydrogen evolution
hydrogen production
iridium
Ligands
photocatalysis
photosensitizers
Reducing agents
Reduction
Solvents
water reduction
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Summary:Waterproof complexes: Cationic IrIII photosensitizers (PSs) with an ancillary 4,4′‐bis(4‐(triphenylsilyl)phenyl)‐2,2′‐bipyridine ligand enabled hydrogen evolution from water with high turnover numbers (TONs; see scheme). The peripheral triphenylsilyl moieties prevent ligand substitution by solvent molecules, such as water, and thus increase the durability of the complexes. SR=sacrificial reducing agent, WRC=water‐reduction catalyst.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201305684