Issue 15, 2016

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

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

Supplementary files

Article information

Article type
Paper
Submitted
11 jan. 2016
Accepted
25 feb. 2016
First published
01 mar. 2016

Dalton Trans., 2016,45, 6612-6618

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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