Incommensurately modulated structure of isotropic lazurite as a product of twinning of two-dimensionally modulated domains

被引：0
|
作者：
N. B. Bolotina
R. K. Rastsvetaeva
A. N. Sapozhnikov
A. A. Kashaev
A. Shönleber
G. Chapuis
机构：
[1] Russian Academy of Sciences,Shubnikov Institute of Crystallography
[2] Russian Academy of Sciences,Vinogradov Institute of Geochemistry, Siberian Division
[3] Irkutsk Institute for Engineers of Railway Transport,Institute of Crystallography
[4] University of Lausanne,undefined
[5] BSP,undefined
来源：
Crystallography Reports | 2003年 / 48卷
关键词：
Reflection; Thermal Parameter; Baikal Region; Isotropic Thermal Parameter; Main Reflection;
D O I：
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中图分类号：
学科分类号：
摘要：
The incommensurately modulated structure of isotropic lazurite (the Baikal region) was established for the first time. The structure was solved within a pseudocubic unit cell with the parameter a = 9.077(1) Å and the (3 + 2)-dimensional superspace group Pnn2(γγ0, γ-g0) based on a twin model consisting of three two-dimensionally modulated orthorhombic components related by a threefold axis along the [111] direction. The structure was refined with isotropic thermal parameters to wR0 = 1.98% and wR1 = 7.5% using 257 main reflections and 2392 first-order satellite reflections, respectively.
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页码：721 / 727
页数：6
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