Supercritical synthesis and topological analysis of K5U5O17(OH)

Abstract

High quality single crystals of the monoclinic phase K₅U₅O₁₇(OH) were synthesized via a hydrothermal method utilizing the supercritical regime of water. The structure of K₅U₅O₁₇(OH) is isotypic with the Na phase, Na₅U₅O₁₇(OH), however crystallizes in a slightly different space group due to size effects. K₅U₅O₁₇(OH) has the same sheet-anion structure as the Na analog, whose topology is analyzed here for the first time. K₅U₅O₁₇(OH) shows fluorescence typical for uranyl species.