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The Hexachlorocerate(III) Anion: A Potent, Benchtop Stable, and Readily Available Ultraviolet A Photosensitizer for Aryl Chlorides

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posted on 22.11.2016 by Haolin Yin, Yi Jin, Jerald E. Hertzog, Kimberly C. Mullane, Patrick J. Carroll, Brian C. Manor, Jessica M. Anna, Eric J. Schelter
The hexachlorocerate­(III) anion, [CeIIICl6]3–, was found to be a potent photoreductant in acetonitrile solution with an estimated excited-state reduction potential of −3.45 V versus Cp2Fe0/+. Despite a short lifetime of 22.1(1) ns, the anion exhibited a photoluminescence quantum yield of 0.61(4) and fast quenching kinetics toward organohalogens allowing for its application in the photocatalytic reduction of aryl chloride substrates.

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