title: Effects of Te(IV) Oxo-Anion Incorporation into Thorium Molybdates and Tungstates.
abstract: The exploration of phase formation in the Th-Mo/W-Te systems has resulted in four mixed oxo-anion compounds from high-temperature solid-state reactions: ThWTe2O9, Th(WO4)(TeO3), ThMoTe2O9, and Th2(MoO4)(TeO3)3. All four compounds contain edge-sharing thorium polyhedra linked by MoO4/WO6 and different tellurium oxo-groups to form three-dimensional frameworks. In ThWTe2O9, each helical Th based chain is connected by four tungstotellurite clusters resulting in a building fragment which has a cross-section of four-leafed clovers. The structure of Th(WO4)(TeO3) exhibits a multilayer-sandwich framework composed of thorium tellurite layers with tungsten chains in between. In the case of the molybdate family, ThMoTe2O9 and Th2(MoO4)(TeO3)3 are built from puckered Th-Te sheets which are further interconnected by MoO4 tetrahedral linkers. The DSC-TG technique was performed to gain insight into the thermal behavior of the synthesized compounds. Raman spectra of as-prepared phases were obtained and analyzed for signature peaks.
authors.affiliation: †Institute of Energy and Climate Research (IEK-6), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany.|‡Institut für Kristallographie, RWTH Aachen University, 52066 Aachen, Germany.
authors.forename: Bin
authors.initials: B
authors.lastname: Xiao
authors.affiliation: †Institute of Energy and Climate Research (IEK-6), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany.
authors.forename: Martina
authors.initials: M
authors.lastname: Klinkenberg
authors.affiliation: †Institute of Energy and Climate Research (IEK-6), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany.
authors.forename: Dirk
authors.initials: D
authors.lastname: Bosbach
authors.affiliation: §Department of Chemistry, Lobachevsky State University of Nizhny Novgorod, 603950 Nizhny Novgorod, Russia.
authors.forename: Evgeny V
authors.initials: EV
authors.lastname: Suleimanov
authors.affiliation: †Institute of Energy and Climate Research (IEK-6), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany.|‡Institut für Kristallographie, RWTH Aachen University, 52066 Aachen, Germany.
authors.forename: Evgeny V
authors.initials: EV
authors.lastname: Alekseev