Rb2Li4(SeO4)32H2O -: the new crystal of selenates hydrates family

被引：2
|
作者：
Pietraszko, A
Bronowska, W
机构：
[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
[2] Wroclaw Tech Univ, Inst Phys, PL-50370 Wroclaw, Poland
来源：
SOLID STATE COMMUNICATIONS | 1999年 / 111卷 / 04期
关键词：
insulators; crystal structure and symmetry; thermal expansion;
D O I：
10.1016/S0038-1098(99)00186-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A single crystal structure analysis of Rb2Li4(SeO4)(3). 2H(2)O is performed. Rb2Li4(SeO4)(3). 2H(2)O has a monoclinic symmetry (space group P2(1)/c, Z = 2), Lattice parameters at room temperature are: a = 5.256(1) Angstrom, b = 5.178(1) Angstrom, c = 26.739(5) Angstrom, beta = 93.11(3)degrees, and V = 726.6(2) Angstrom(3). The final discrepancy factor for the structure determination is R = 0.0422. The structural disordering in Rb2Li4(SeO4)(3). 2H(2)O has been observed at room temperature. No anomalies have been revealed on temperature dependencies of the lattice parameters of these crystals (obtained from the single-crystal measurements and the powder diffraction data) over the temperature range from 30 to 302 K. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码：205 / 209
页数：5
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