|
|||||
|
|
Cu5Sb2O8SiO4, an open framework structure with copper uncommon coordination modes: CuO6 and CuO8 |
|
| Authors: | M Fakhfakh A Seguatni P Molinie |
| Affiliation: | a Département de Chimie, Université du Québec, C.P. 8888, Succ. Centre-ville, Montréal, Que., Canada H3C 3P8 b Laboratoire de Chimie Inorganique et Structurale, Faculté des Sciences de Bizerte, 7021, Zarzouna, Bizerte, Tunisia c Institut Jean Rouxel des Matériaux, 2 Chemin de la Houssinière, F-44072 Nantes Cedex, France d Laboratoire des Propriétés Mécaniques et Thermodynamiques des Matériaux, LPMTM-UPR-CNRS 9001, Institut Galilée, Université Paris XIII, 99, Avenue J.B. Clément, F-93430, Villetaneuse, France |
| Abstract: | Cu5Sb2O8SiO4 is orthorhombic, space group Pcca, with a = 19.031 (2), b = 9.3944 (6), c = 9.602 (2) Å, and z = 8. Its crystal structure was determined using single crystal X-ray diffraction (R1 = 0.0432 and wR2 = 0.1146). The compound presents a parwelite-like structure. Its anionic three-dimensional framework is built up of corner-sharing SbO6 octahedra and SiO4 tetrahedra, delimiting interconnected channels wherein Cu2+ with different coordination modes, are located. The χM and χMT product versus T plots, showed the Cu5Sb2O8SiO4 material to exhibit an anti-ferromagnetic character with a Neel temperature of about 27 K. |
| Keywords: | A Inorganic compounds C X-ray diffraction D Crystal structure D Magnetic properties |
| 本文献已被 ScienceDirect 等数据库收录！ | |