The alluaudite-like arsenate NaCaMg3(AsO4)3

被引：6

作者：

Abdallah, Anissa Haj ^{[1
]}

Haddad, Amor ^{[1
]}

机构：

[1] Inst Super Sci Appl & Technol Mahdia, Lab Mat & Cristallochime, Hiboun 5111, Mahdia, Tunisia

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2008年 / 64卷

关键词：

D O I：

10.1107/S1600536808014633

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The title compound, sodium calcium trimagnesium tris(arsenate), an alluaudite-like arsenate, was prepared by solid-state reaction at high temperature. The structure is built up from edge-sharing MgO6 octahedra in chains associated with the AsO4 arsenate groups. The three-dimensional network leads to two different tunnels occupied statistically by Na+ and Ca2+. One As and one Mg atom lie on twofold rotation axes; one Na and one Ca are disordered over two sites with occupancies of 0.7 and 0.3 and these sites lie on a twofold rotation axis and an inversion centre, respectively.

引用

页码：I36 / U95

页数：10

共 15 条

[1] Na1.72Mn3.28(AsO4)3 [J].

Ayed, B ;

Krifa, M ;

Haddad, A .

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY, 2002, 58 (07) :I98-I100

[2]

BRAHIM A, 2003, ACTA CRYSTALLOGR E, V59, P77

[3]

Brandenburg K., 1999, Crystal Impact GbR

[4] INDEXING IN SINGLE-CRYSTAL DIFFRACTOMETRY WITH AN OBSTINATE LIST OF REFLECTIONS [J].

DUISENBERG, AJM .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1992, 25 :92-96

[5]

Fair C. K, 1990, MOLEN

[6] Alluaudite-like structure of the complex arsenate NaCaCdMg2(AsO4)(3) [J].

Khorari, S ;

Rulmont, A ;

Tarte, P ;

Miehe, G ;

Antenucci, D ;

Gilbert, B .

JOURNAL OF SOLID STATE CHEMISTRY, 1997, 131 (02) :298-304

[7] Hydrothermal synthesis, structure, and characterization of a mixed-valent Iron(II/III) phosphate, NaFe3.67(PO4)3:: A new variation of the alluaudite structure type [J].

Korzenski, MB ;

Schimek, GL ;

Kolis, JW .

JOURNAL OF SOLID STATE CHEMISTRY, 1998, 139 (01) :152-160

[8]

KWANGHWA L, 1994, INORG CHEM, V33, P3028

[9] SYNTHESIS AND STRUCTURE OF NAMN3(PO4)(HPO4)(2), AN UNOXIDIZED VARIANT OF THE ALLUAUDITE STRUCTURE TYPE [J].

LEROUX, F ;

MAR, A ;

PAYEN, C ;

GUYOMARD, D ;

VERBAERE, A ;

PIFFARD, Y .

JOURNAL OF SOLID STATE CHEMISTRY, 1995, 115 (01) :240-246

[10] BLAF - A ROBUST PROGRAM FOR TRACKING OUT ADMITTABLE BRAVAIS LATTICE(S) FROM THE EXPERIMENTAL UNIT-CELL DATA [J].

MACICEK, J ;

YORDANOV, A .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1992, 25 :73-80

← 1 2 →