Table of Contents
Journal of Crystallography
Volume 2013, Article ID 146567, 6 pages
http://dx.doi.org/10.1155/2013/146567
Research Article

Synthesis, Crystal Structure and Electrical Properties of the Molybdenum Oxide

Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis El Manar, Manar II, 2092 Tunis, Tunisia

Received 28 May 2013; Accepted 4 August 2013

Academic Editors: M. Akkurt, J. Jasinski, J.-P. Lang, and D. Sun

Copyright © 2013 Ennajeh Ines et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

New molybdenum oxide Na1.92Mg2.04Mo3O12 has been synthesized by the solid state method. The title compound crystallizes in the triclinic system (space group P-1). The unit cell parameters are a = 6.9660(7) Å, b = 8.6352(8) Å, c = 10.2501(8) Å, α = 106.938(1)°, β = 104.825(1)°, γ = 103.206(1)°, V = 538.72(9) Å3, and Z = 2. The compound is isotypical to Ag2M2(MoO4)3 (M = Zn, Mg, Co, Mn). The structure can be described as a three-dimensional anionic mixed framework of MoO4 tetrahedra and pairs of Mg2O10 octahedra sharing common edges. The Na+ ions are disordered and located in the voids forming infinite channels running along the direction [100]. The electrical conductivity investigated from 693 K to 793 K by AC impedance spectroscopy is low (  S cm−1 at 683 K).