Crystal structure of alluaudite-type NaMg3(HPO4)(2)(PO4)

被引：11
|
作者：
Saleck, Ahmed Ould [1 ,2 ]
Assani, Abderrazzak [1 ]
Saadi, Mohamed [1 ]
Mercier, Cyrille [2 ]
Follet, Claudine [2 ]
El Ammari, Lahcen [1 ]
机构：
[1] Univ Mohammed 5, Fac Sci, Lab Chim Solide Appl, Ave Ibn Battouta,BP 1014, Rabat, Morocco
[2] Univ Valenciennes & Hainaut Cambresis, Lab Mat Ceram & Proc Associes EA 2443, Maubeuge, France
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2015年 / 71卷
关键词：
crystal structure; transition metal phosphates; alluaudite structure type; hydrothermal synthesis; hydrogen bonding;
D O I：
10.1107/S205698901501155X
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The title compound, sodium trimagnesium bis(hydrogen phosphate) phosphate, was obtained under hydrothermal conditions. In the crystal, two types of [MgO6] octahedra, one with point group symmetry 2, share edges to build chains extending parallel to [10 (1) over bar]. These chains are linked together by two kinds of phosphate tetrahedra, HPO4 and PO4, the latter with point group symmetry 2. The three-dimensional framework delimits two different types of channels extending along [001]. One channel hosts the Na+ cations (site symmetry 2) surrounded by eight O atoms, with Na-O bond lengths varying between 2.2974 (13) and 2.922 (2) angstrom. The OH group of the HPO4 tetrahedron points into the other type of channel and exhibits a strong hydrogen bond to an O atom of the PO4 tetrahedron on the opposite side.
引用
收藏
页码：813 / +
页数：7
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