Possible existence off alkali metal orthocarbonates at high pressure

被引：28

作者：

Cancarevic, Zeljko P. ^{[1
]}

Schoen, J. Christian ^{[1
]}

Jansen, Martin ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2007年 / 13卷 / 26期

关键词：

alkali metal orthocarbonates; high pressure polymorphs; structure prediction;

D O I：

10.1002/chem.200601637

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigate the possible existence of crystalline alkali metal orthocarbonates, A(4)CO(4), where A=Li, Na, K, Rb, and Cs. We study the equilibrium between the possible modifications of the orthocarbonate A(4)CO(4) and the binary mixture of the possible modifications of the alkali oxide A(2)O and those of the alkali metal carbonate A(2)CO(3) as function of pressure. In all cases, the orthocarbonate should be stable at sufficiently high pressure ranging from 22-32 GPa (Rb4CO4) to 200-220 GPa (Cs4CO4).

引用

页码：7330 / 7348

页数：19

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