title: 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.
authors.affiliation: Institut für Anorganische Chemie I, Universität Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
authors.forename: Tanja
authors.initials: T
authors.lastname: Kowacs
authors.affiliation: Optical Sciences group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands. j.m.huijser@utwente.nl.
authors.forename: Qing
authors.initials: Q
authors.lastname: Pan
authors.affiliation: Institut für Anorganische Chemie I, Universität Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
authors.forename: Philipp
authors.initials: P
authors.lastname: Lang
authors.affiliation: SRC for Solar Energy Conversion, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland. han.vos@dcu.ie.
authors.forename: Laura
authors.initials: L
authors.lastname: O'Reilly
authors.affiliation: Institut für Anorganische Chemie I, Universität Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
authors.forename: Sven
authors.initials: S
authors.lastname: Rau
authors.affiliation: Stratingh Institute for Chemistry, Faculty of Mathematics and Natural Sciences, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands. w.r.browne@rug.nl.
authors.forename: Wesley R
authors.initials: WR
authors.lastname: Browne
authors.affiliation: SRC for Solar Energy Conversion, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland. han.vos@dcu.ie.
authors.forename: Mary T
authors.initials: MT
authors.lastname: Pryce
authors.affiliation: Optical Sciences group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands. j.m.huijser@utwente.nl.
authors.forename: Annemarie
authors.initials: A
authors.lastname: Huijser
authors.affiliation: SRC for Solar Energy Conversion, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland. han.vos@dcu.ie.
authors.forename: Johannes G
authors.initials: JG
authors.lastname: Vos