ChemInform Abstract: Transformation of the Defective Layered Structure into the Three-Dimensional Perovskite Structure under High Pressure.

✍ Scribed by S.-H. BYEON; H. KIM; J.-J. YOON; Y. DONG; H. YUN; Y. INAGUMA; M. ITOH

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 29 KB
• Volume: 29
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199847008

✦ Synopsis

Transformation of the Defective Layered Structure into the Three-Dimensional Perovskite Structure under High Pressure.

-The possibility of the transformation from a layered to a three-dimensional structure by preparing RbLaSrNb 2 MO 9 (M: Mg, Cu, Zn) under ambient pressure and high pressure (5 GPa) is explored. The compounds are synthesized from Rb 2 CO 3 , La 2 O 3 , SrCO 3 , Nb 2 O 5 , and MO by use of two different routes. For M: Mg and Zn, high pressure is required to form a single phase and neither a layer structure nor three-dimensionality is induced under normal conditions. The Cu compound has the defective layered structure under normal conditions and a three-dimensional one at high pressure. -(BYEON, S.-H.; KIM, H.;