title: Discovering the balance of steric and electronic factors needed to provide a new structural motif for photocatalytic hydrogen production from water.
abstract: Ru,Rh,Ru supramolecules are known to undergo multielectron photoreduction and reduce H(2)O to H(2). Ru,Rh bimetallics were recently shown to photoreduce but not catalyze H(2)O reduction. Careful tuning of sterics and electronics for [(TL)(2)Ru(dpp)RhCl(2)(TL')](3+) produce active bimetallic photocatalysts (TL = terminal ligand). The system with TL,TL' = Ph(2)phen photocatalytically reduces H(2)O to H(2) while TL,TL' = phen,bpy or bpy,(t)Bu(2)bpy do not.
authors.affiliation: Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061-0212, United States.
authors.forename: Travis A
authors.initials: TA
authors.lastname: White
authors.forename: Brittany N
authors.initials: BN
authors.lastname: Whitaker
authors.forename: Karen J
authors.initials: KJ
authors.lastname: Brewer