Crystallographic Analysis of SiO2 Polymorphs

被引：5

作者：

Borisov, S. V. ^{[1
]}

Pervukhina, N. V. ^{[1
,2
]}

Magarill, S. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Branch, Novosibirsk, Russia

[2] Novosibirsk State Univ, Novosibirsk, Russia

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 2019年 / 60卷 / 12期

关键词：

crystallographic analysis; cation and anion sublattices; SiO2; polymorphism; alpha-quartz; beta-tridymite; alpha- and beta-cristobalite; coesite; stishovite; relative stability factors; REFINEMENT; CRYSTAL;

D O I：

10.1134/S0022476619120102

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystallographic analysis of six SiO2 phases (alpha-quartz, beta-tridymite, alpha- and beta-cristobalite, coesite, and stishovite) is performed. The effect of the local symmetry of SiO4 tetrahedra on the symmetry of phases tending either to highly symmetrical cubic P-cristobalite or hexagonal P-tridymite is shown. The parameters of cation, anion, and joint pseudotranslational sublattices characterizing the atomic configurations of the structures and their individual features are calculated. The relative stability of the phases is considered.

引用

页码：1946 / 1958

页数：13

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