Structural study by X-ray diffraction and Mossbauer spectroscopy of a new synthetic iron phosphate: K4MgFe3(PO4)5

被引：9

作者：

Hidouri, Mourad ^{[1
]}

Sendi, Nesrine ^{[1
]}

Wattiaux, Alain ^{[2
]}

Amara, Mongi B. ^{[1
]}

机构：

[1] Fac Sci, UR Mat Inorgan, Monastir 5019, Tunisia

[2] Univ Bordeaux 1, CNRS, Inst Chim Mat Condensee Bordeaux, F-33608 Pessac, France

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2008年 / 69卷 / 10期

关键词：

Inorganic compounds; Chemical synthesis; X-ray diffraction; Mossbauer spectroscopy;

D O I：

10.1016/j.jpcs.2008.05.018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new iron phosphate K4MgFe3(PO4)(5) has been synthesized by the flux method and characterized by single-crystal X-ray diffraction and Mossbauer spectroscopy. It crystallizes in the tetragonal system with the space group P (4) over bar2(1)c and the unit cell parameters a = 9.714(3) angstrom and c = 9.494(5) angstrom. The crystal structure is of a new type. It exhibits a three-dimensional framework built up from corner-sharing MO5 (M = 0.75Fe+0.25Mg) trigonal bipyramids and PO4 tetrahedra. The K+ ions are occupying large eight-sided tunnels running along c. A room temperature Mossbauer study confirmed the +3 valence state of iron and its five-coordination. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2555 / 2558

页数：4

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