Single Crystal X-Ray Structural Investigation of Alluaudite Related Monophosphate Na2FeMn2(PO4)3

Authors

  • N. Dridi Laboratoire de Chimie du Solide Appliquée, Université Mohammed V-Agdal, avenue Ibn Batouta, B.P. 1014, Rabat, Morocco
  • El-H. Arbib Laboratoire de Physico-chimie des Matériaux vitreux et cristallisés, Equipe de Physico-Chimie des Matériaux Inorganiques, Université Ibn Tofaïl, Département de Chimie, Kénitra, Morocco
  • El H. Karni Laboratoire de Chimie du Solide Appliquée, Université Mohammed V-Agdal, avenue Ibn Batouta, B.P. 1014, Rabat, Morocco
  • F. Capitelli Istituto di Cristallografia (IC-CNR), sezione di Bari, Via Amendola 122/o,70126 Bari, Italy
  • B. Elouadi Laboratoire d’Elaboration Analyse Chimique et Ingénieurie des Matériaux (LEACIM), Université de la Rochelle, avenue Miche Crépeau, 17042 La Rochelle, France

DOI:

https://doi.org/10.18321/ectj47

Abstract

The compound Na2FeMn2(PO4)3 has been successfully isolated with the alluaudite structural type. Accurate single crystal X-ray diffraction has allowed solving the structure with reliability factors of R1 and Rw equal to 0.0322 and 0.0790 respectively. It was found that the symmetry is monoclinic with a space group of C2/c and lattice parameters: a = 12.180(2) Å, b = 12.660(2) Å, c = 6.500(2) Å, B = 114.528(3)(°), unit cell volume = 911.8(3) Å3, Z = 8 and dcal.=3.618 g.cm-3. Three-dimensional network is formed by the [MnO6] octahedra linked in pairs to form Mn-based octahedral dimers: ([Mn2O10]). Each dimer shares six vertices with six tetrahedra [P(2)O4] to form sheets within the plane (100). The latter are connected by tetrahedra [P(1)O4] delimiting cages and tunnels which house either Fe3+ or Na+ cations. Each [FeO6] octahedron is linked to two [Mn2O10] dimers belonging to two adjacent sheets to form mixed Fe-Mn chains of the type: - Fe3+ - Mn2+ - Mn2+ - Fe3+ - Mn2+ - Mn2+ - Fe3+ - ..., running along the direction [101].

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Published

2010-11-15

How to Cite

Dridi, N., Arbib, E.-H., Karni, E. H., Capitelli, F., & Elouadi, B. (2010). Single Crystal X-Ray Structural Investigation of Alluaudite Related Monophosphate Na2FeMn2(PO4)3. Eurasian Chemico-Technological Journal, 12(3-4), 213–218. https://doi.org/10.18321/ectj47

Issue

Vol. 12 No. 3-4 (2010)

Section

Articles

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