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Issue 15, 2016
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Generation of a stable supramolecular hydrogen evolving photocatalyst by alteration of the catalytic center

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Abstract

A new dyad consisting of a RuII chromophore, a tetrapyridophenazine bridging ligand and a Rh(Cp*)Cl catalytic center, [Ru(tbbpy)2(tpphz)Rh(Cp*)Cl]Cl(PF6)2, acts as durable photocatalyst for hydrogen production from water. Catalytic activity is observed for more than 650 hours. Electrochemical investigations reveal that up to two electrons can be transferred to the catalytic center by a thermodynamically favorable intramolecular process, which has so far not been reported for similar tpphz based supramolecular photocatalysts. Additionally, mercury poisoning tests indicate that the new dyad works as a homogeneous photocatalyst.

Graphical abstract: Generation of a stable supramolecular hydrogen evolving photocatalyst by alteration of the catalytic center

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Publication details

The article was received on 11 jan. 2016, accepted on 25 feb. 2016 and first published on 01 mar. 2016


Article type: Paper
DOI: 10.1039/C6DT00130K
Citation: Dalton Trans., 2016,45, 6612-6618
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    Generation of a stable supramolecular hydrogen evolving photocatalyst by alteration of the catalytic center

    A. K. Mengele, S. Kaufhold, C. Streb and S. Rau, Dalton Trans., 2016, 45, 6612
    DOI: 10.1039/C6DT00130K

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