Syntheses and single-crystal structures of CsTh(MoO{sub 4}){sub 2}Cl and Na{sub 4}Th(WO{sub 4}){sub 4}

Journal Article · Tue Feb 15 00:00:00 EST 2011 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.12.003· OSTI ID:21494207

Bang Jin, Geng ^[1]; Soderholm, L ^[1]

---

1. Chemical Sciences and Engineering Division, CHM/200 Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60439 (United States)

Colorless crystals of CsTh(MoO{sub 4}){sub 2}Cl and Na{sub 4}Th(WO{sub 4}){sub 4} have been synthesized at 993 K by the solid-state reactions of ThO{sub 2}, MoO{sub 3}, CsCl, and ThCl{sub 4} with Na{sub 2}WO{sub 4}. Both compounds have been characterized by the single-crystal X-ray diffraction. The structure of CsTh(MoO{sub 4}){sub 2}Cl is orthorhombic, consisting of two adjacent [Th(MoO{sub 4}){sub 2}] layers separated by an ionic CsCl sublattice. It can be considered as an insertion compound of Th(MoO{sub 4}){sub 2} and reformulated as Th(MoO{sub 4}){sub 2}.CsCl. The Th atom coordinates to seven monodentate MoO{sub 4} tetrahedra and one Cl atom in a highly distorted square antiprism. Na{sub 4}Th(WO{sub 4}){sub 4} adopts a scheelite superlattice structure. The three-dimensional framework of Na{sub 4}Th(WO{sub 4}){sub 4} is constructed from corner-sharing ThO{sub 8} square antiprisms and WO{sub 4} tetrahedra. The space within the channels is filled by six-coordinate Na ions. Crystal data: CsTh(MoO{sub 4}){sub 2}Cl, monoclinic, P2{sub 1}/c, Z=4, a=10.170(1) A, b=10.030(1) A, c=9.649(1) A, {beta}=95.671(2){sup o}, V=979.5(2) A{sup 3}, R(F)=2.65% for I>2{sigma}(I); Na{sub 4}Th(WO{sub 4}){sub 4}, tetragonal, I4{sub 1}/a, Z=4, a=11.437(1) A, c=11.833(2) A, V=1547.7(4) A{sup 3}, R(F)=3.02% for I>2{sigma}(I). -- Graphical abstract: The two-dimensional layered structure of CsTh(MoO{sub 4}){sub 2}Cl viewed down the b axis. Display Omitted Research highlights: {yields} Syntheses of CsTh(MoO{sub 4}){sub 2}Cl and Na{sub 4}Th(WO{sub 4}){sub 4} from chlorides. {yields} Single-crystal structures of CsTh(MoO{sub 4}){sub 2}Cl and Na{sub 4}Th(WO{sub 4}){sub 4}. {yields} CsTh(MoO{sub 4}){sub 2}Cl can be considered as an inclusion compound composed of covalent [Th(MoO{sub 4}){sub 2}] layer and ionic [CsCl] layers. {yields} Na{sub 4}Th(WO{sub 4}){sub 4} adopts a defect scheelite structure.

• OSTI ID: 21494207
• Journal Information: Journal of Solid State Chemistry, Vol. 184, Issue 2; Other Information: DOI: 10.1016/j.jssc.2010.12.003; PII: S0022-4596(10)00541-4; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CESIUM CHLORIDES
MOLYBDATES
MOLYBDENUM OXIDES
MONOCLINIC LATTICES
MONOCRYSTALS
ORTHORHOMBIC LATTICES
SODIUM IONS
SODIUM TUNGSTATES
SUPERLATTICES
TETRAGONAL LATTICES
THORIUM CHLORIDES
THORIUM OXIDES
X-RAY DIFFRACTION
ACTINIDE COMPOUNDS
ALKALI METAL COMPOUNDS
CESIUM COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
HALIDES
HALOGEN COMPOUNDS
IONS
MOLYBDENUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SCATTERING
SODIUM COMPOUNDS
THORIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TUNGSTATES
TUNGSTEN COMPOUNDS