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[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Microsecond charge recombination in a linear triarylamine-Ru(bpy)3(2+)-anthraquinone triad
Jihane Hankache1, Oliver S Wenger
1Georg-August-Universität Göttingen, Institut für Anorganische Chemie, Tammannstrasse 4, D-37077 Göttingen, Germany.
Chemical Communications (Cambridge, England)
|August 12, 2011
Summary
Ruthenium photosensitizers in linear triads demonstrate efficient electron-hole separation. This study utilizes a novel ruthenium bis(bipyridine) tris complex for vectorial photoinduced electron transfer over 22 Å.
Area of Science:
- Photochemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Linear triads commonly employ ruthenium terpyridine photosensitizers.
- Developing new photosensitizers is crucial for advancing electron transfer studies.
Purpose of the Study:
- To investigate vectorial photoinduced electron transfer in a linear triad.
- To utilize a ruthenium bis(bipyridine) tris complex as the photosensitizer.
Main Methods:
- Synthesis of a linear triad incorporating a Ru(bipyridine)3(2+) photosensitizer.
- Spectroscopic analysis to confirm electron-hole separation and measure lifetime.
Main Results:
- Achieved vectorial photoinduced electron transfer over a 22 Å distance.
- Established a quantum yield exceeding 64% for electron-hole separation.
- Observed a persistent separation state lasting 1.3 μs in acetonitrile.
Conclusions:
- The Ru(bipyridine)3(2+) unit is effective for vectorial photoinduced electron transfer.
- Demonstrated efficient and long-lived electron-hole separation in a linear triad architecture.
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