Author:
Dridi Wassim,Ennajeh Ines,Zid Mohamed Faouzi
Abstract
The title compound, nonasodium chromium(III) hexakis[molybdate(VI)], Na9Cr(MoO4)6was prepared by solid-state reactions. The basic structure units are isolated polyhedral clusters composed of a central CrO6octahedron sharing vertices with six MoO4tetrahedra to form an open framework in which the Na+cations are bound to the free vertices of the MoO4tetrahedra. The Cr3+cation has site symmetry of 32 (6a), one Na atom sits on a twofold axis (18e), and all other atoms are at general positions. The bond-valance-sum model confirms the expected values of ion charges. The title compound is isotypic with Na9Sc(MoO4)6and Na9Fe(MoO4)6. It is compared and discussed with similar structures.
Publisher
International Union of Crystallography (IUCr)
Subject
Condensed Matter Physics,General Materials Science,General Chemistry
Cited by
9 articles.
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1. MOLYBDATES AND TUNGSTATES OF THE ALLUAUDITE FAMILY: CRYSTAL CHEMISTRY, COMPOSITION, AND IONIC MOBILITY;Journal of Structural Chemistry;2022-07
2. Na9In(MoO4)6: synthesis, crystal structure, and Na+ ion diffusion;Ionics;2021-08-18
3. Triple molybdates K3–x
Na1+x
M
4(MoO4)6 (M = Ni, Mg, Co) and K3+x
Li1–x
Mg4(MoO4)6 isotypic with II-Na3Fe2(AsO4)3 and yurmarinite: synthesis, potassium disorder, crystal chemistry and ionic conductivity;Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials;2020-09-20
4. Structure and Non-Stoichiometry of Double Sodium Molybdates with Scandium and Indium of the Alluaudite Type;Journal of Structural Chemistry;2020-03
5. Structural study, CHARDI and BVS validation and ionic migration pathways of a new lyonsite (Na1/3Li2/3)(Li2,Cr)(MoO4)3;Journal of Solid State Chemistry;2019-04