title: Iridium-based complexes for water oxidation.
abstract: Organometallic Ir precatalysts have been found to yield homogeneous Ir-based water-oxidation catalysts (WOCs) with very high activity. The Cp*Ir catalyst series can operate under a variety of regimes: it can either act as a homogeneous or a heterogeneous catalyst; it can be driven by chemical, photochemical, or electrochemical methods; and the molecular catalyst can either act in solution or supported as a molecular unit on a variety of solid oxides. In addition to optimizing the various reaction conditions, work has continued to elucidate the catalyst activation mechanism and identify water-oxidation intermediates. This Perspective will describe the development of the Cp*Ir series, their many forms as WOCs, and their ongoing characterization.
authors.affiliation: Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520, USA. robert.crabtree@yale.edu gary.brudvig@yale.edu.
authors.forename: Julianne M
authors.initials: JM
authors.lastname: Thomsen
authors.forename: Daria L
authors.initials: DL
authors.lastname: Huang
authors.forename: Robert H
authors.initials: RH
authors.lastname: Crabtree
authors.forename: Gary W
authors.initials: GW
authors.lastname: Brudvig