title: Hydrogeniridate(VI) anion and the geometries of tetrahedral oxo-anions.
abstract: The compound KHIrO4, potassium hydrogentetraoxidoiridate(VI)(1-), crystallizes in a Scheelite-type structure containing discrete, slightly flattened, [Ir(O3OH)](-) tetrahedra--the first observation of a group 9 element in the 6+ oxidation state as an oxoanion.
authors.affiliation: Department of Chemistry, University of Bath , Bath BA2 7AY, United Kingdom.
authors.forename: Mark T
authors.initials: MT
authors.lastname: Weller
authors.forename: Rosa
authors.initials: R
authors.lastname: Galati