Volume 185, 2015

Supramolecular bimetallic assemblies for photocatalytic hydrogen generation from water

Abstract

A series of supramolecular assemblies of the type [Ru(L-L)2(L′-L)MX2)]n+ are reported where L-L is 2,2′-bipyridine (bipy), 4,4′-di-tetra-butyl-bipyridine (tbbipy) or 4,4′-diethoxycarbonyl-2,2′-bipyridine (dceb), L-L′ is tetrapyrido[3,2-a:2′,3′-c:3′′,2′′-h:2′′′,3′′′-j]phenazine (tpphz), 2,2′:5′,2′′-terpyridine (2,5-bpp), 2,2′:6′,2′′-terpyridine, (2,6-bpp), 2,5-di(pyridine-2-yl)pyrazine (2,5-dpp) or 2,3-di(pyridine-2-yl)pyrazine (2,3-dpp), and MX2 is PdCl2, PtCl2 or PtI2. The photocatalytic behaviour with respect to hydrogen generation of these compounds and their ultrafast photophysical properties are discussed as a function of the nature of the peripheral ligands, the bridging ligands and the catalytic centre. The results obtained show how differences in the chemical composition of the photocatalysts can affect intramolecular photoinduced electron transfer processes and the overall photocatalytic efficiency.

Associated articles

Supplementary files

Article information

Article type
Paper
Submitted
09 May 2015
Accepted
26 May 2015
First published
28 May 2015

Faraday Discuss., 2015,185, 143-170

Author version available

Supramolecular bimetallic assemblies for photocatalytic hydrogen generation from water

T. Kowacs, Q. Pan, P. Lang, L. O'Reilly, S. Rau, W. R. Browne, M. T. Pryce, A. Huijser and J. G. Vos, Faraday Discuss., 2015, 185, 143 DOI: 10.1039/C5FD00068H

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