title: K(UO)Si2O6: a pentavalent-uranium silicate.
abstract: We report the first example of pentavalent-uranium silicate synthesized by a high-temperature, high-pressure hydrothermal method. The 3-D framework consists of four-membered single rings of corner-sharing SiO4 tetrahedra and 1-D UO4/1O2/2 chains. Magnetic susceptibility and XPS were measured to identify the valence state of uranium.
authors.affiliation: Department of Chemistry, National Central University, Chungli, Taiwan 320, ROC.
authors.forename: Chih-Shan
authors.initials: CS
authors.lastname: Chen
authors.forename: Shang-Fan
authors.initials: SF
authors.lastname: Lee
authors.forename: Kwang-Hwa
authors.initials: KH
authors.lastname: Lii