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Synthesis, crystal structure and optical properties of BiMgVO5

被引：58
作者：
Benmokhtar, S
El Jazouli, A
Chaminade, JP
Gravereau, P
Guillen, F
de Waal, D
机构：
[1] Fac Sci Ben MSik, LCMS, UFR Sci Mat Solides, Casablanca, Morocco
[2] CNRS, ICMCB, Inst Chim Mat Condensee Bordeaux, F-33608 Pessac, France
[3] Univ Pretoria, Dept Chem, ZA-0002 Pretoria, South Africa
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2004年 / 177卷 / 11期
关键词：
BiMgOVO4; oxyvanadate; crystal structure; Raman; optical properties;
D O I：
10.1016/j.jssc.2004.06.030
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The new vanadate BiMgVO5 has been prepared and its structure has been determined by single crystal X-ray diffraction: space group P2(l)/n, a = 7.542(6) Angstrom, b = 1 1.615(5) Angstrom, c = 5.305(3) Angstrom, beta = 107.38(5)(c), wR(2) = 0.0447, R = 0.0255. The structure consists of [Mg2O10] and [Bi2O10] dimers sharing their corners with [VO4] tetrahedra. The ranges of bond lengths are 2.129-2.814 Angstrom for Bi-O; 2.035-2.167 Angstrom for Mg-O and 1.684-1.745 Angstrom for V-O. V-O bond lengths determined from Raman band wavenumbers are between 1.679 and 1.747 Angstrom. An emission band overlapping the entire visible region with a maximum around 650 nm is observed. (C) 2004 Elsevier Inc. All rights reserved.
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页码：4175 / 4182
页数：8
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