title: Homogeneous light-driven water oxidation catalyzed by a tetraruthenium complex with all inorganic ligands.
abstract: A totally homogeneous, molecular, visible-light-driven water oxidation system is reported. The three system components are (i) a water oxidation catalyst, 1 (a Ru(IV)(4)O(4) cluster stabilized by oxidatively resistant [SiW(10)O(32)](8-) ligands); (ii) a photosensitizer, [Ru(bpy)(3)](2+); and (iii) a sacrificial electron acceptor, S(2)O(8)(2-). Dioxygen is formed rapidly with an initial turnover frequency of approximately 8 x 10(-2) s(-1) and an estimated quantum yield (defined as the number of O(2) molecules formed per two photons absorbed) of approximately 9%.
authors.affiliation: Department of Chemistry and the Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, USA.
authors.forename: Yurii V
authors.initials: YV
authors.lastname: Geletii
authors.forename: Zhuangqun
authors.initials: Z
authors.lastname: Huang
authors.forename: Yu
authors.initials: Y
authors.lastname: Hou
authors.forename: Djamaladdin G
authors.initials: DG
authors.lastname: Musaev
authors.forename: Tianquan
authors.initials: T
authors.lastname: Lian
authors.forename: Craig L
authors.initials: CL
authors.lastname: Hill