Max-Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
Inorg Chem. 2011 May 16;50(10):4523-8. doi: 10.1021/ic2001859. Epub 2011 Apr 12.
The clathrate-I phase Ba(8-x)Si(46) (space group Pm3̅n) was synthesized by oxidation of Ba(4)Li(2)Si(6) with gaseous HCl. Microcrystalline powders of the clathrate phase were obtained within a few minutes. The reaction temperature and the pressure of HCl were optimized to achieve good-quality crystalline products with a composition range of 1.3 < x < 1.9. The new preparation route presented here provides an alternative to the high-pressure synthesis applied so far.
笼型-I 相 Ba(8-x)Si(46)（空间群 Pm3̅n）通过 Ba(4)Li(2)Si(6)与氯化氢气体的氧化反应合成。笼型相的微晶体粉末在几分钟内获得。反应温度和 HCl 压力被优化以获得具有组成范围 1.3 < x < 1.9 的高质量晶体产物。这里提出的新制备路线为迄今为止应用的高压合成提供了替代方法。
