Na1.67Mn2.17(MoO4)3.
The title compound, disodium dimanganese(II) tris-[ortho-molybdate(VI)], was prepared by solid-state reactions. The structure can be described as being composed of Mn2Mo2O14 double-chains that are inter-connected by corner-sharing with MoO4 tetra-hedra, leading to a three-dimensional framework with channels propagating in [100] and [001] in which the Na(+) counter-cations are located. One of these Na sites is located on an inversion centre, one is partially occupied [occupancy 0.341 (9)], and one is statistically occupied by Na and Mn in a ratio of 0.829 (5):0.171 (5). Na1.67Mn2.17(MoO4)3 is isotypic with structures of the Ag2 M 2(MoO4)3 (M = Zn, Mg, Co, Mn) family. A comparative structural description is provided between the structure of the title compound and those of related phases containing (MXO8) n chains (M = Mo, Mn and X = As) or M 2O10 (M = Mo, Mn, Nb, V) dimers.
Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis ElManar, 2092 Manar II Tunis, Tunisia.
Chahira
C
Bouzidi
Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis ElManar, 2092 Manar II Tunis, Tunisia.
Mohamed Faouzi
MF
Zid
Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis ElManar, 2092 Manar II Tunis, Tunisia.
Ahmed
A
Driss
Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis ElManar, 2092 Manar II Tunis, Tunisia.
Wafa
W
Frigui