Structure cristalline de type alluaudite KNa5Mn3(MoO4)6

Acta Crystallographica Section E: Crystallographic Communications

Zid, M.F.²  Bouzidi, C.³  Frigui, W.⁴ 

[1] de Tunis ElManar, 2092 Manar II Tunis, Tunisia;des Sciences de Tunis, UniversitéLaboratoire de Matériaux et Cristallochimie, Faculté

关键词: CRYSTAL STRUCTURE;    ALLUAUDITE-TYPE;    HEXAKIS(MOLYBDATE);   

DOI  :  10.1107/S2056989014027030

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The new phase potassium penta­sodium trimanganese hexa­kis(molybdate), KNa5Mn3Mo6O24, has been synthesized using solid-state methods. The structure is composed of M2O10 (M = Mn, Na) dimers and MoO4 tetra­hedra (point group symmetry 2) sharing corners and forming layers parallel to (100), which are linked via common corners of another type of MO4 tetra­hedra, forming a three-dimensional structure with two types of large channels along [001] in which two types of Na+ cations (one with site symmetry 2, one with -1) and K+ cations (site symmetry 2, half-occupation) are located. Mn2+ and the third type of Na+ cations are located at the same site M with occupancies of 0.75 and 0.25, respectively. A comparative structural description is provided between the structure of the title compound and those of the related phases Cu1.35Fe3(PO4)3 and NaAgFeMn2(PO4)3.

【 授权许可】

CC BY