We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Synthesis and Structural Study of Phosphates K<sub>2</sub>Mg<sub>0.5</sub>Zr<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub>, Rb<sub>2</sub>Mg<sub>0.5</sub>Zr<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub>, and Cs<sub>2</sub>Mg<sub>0.5</sub>Zr<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> with Langbeinite Structure.
- Authors
Orlova, A. I.; Orlova, V. A.; Beskrovnyǐ, A. I.; Trubach, I. G.; Kurazhkovskaya, V. S.
- Abstract
New orthophosphates K2Mg0.5Zr1.5(PO4)3,Rb2Mg0.5Zr1.5(PO4)3 , and Cs2Mg0.5Zr1.5(PO4)3 are synthesized and characterized by X-ray powder diffraction and IR spectroscopy. These orthophosphates crystallize in the structure type of the mineral langbeinite (cubic system, sp. gr. P213,Z = 4). The structure of phosphate Cs2Mg0.5Zr1.5(PO4)3 is refined by the Rietveld method using neutron powder diffraction data (a DN-2 time-of-flight diffractometer, the Joint Institute for Nuclear Research, Dubna, Russia) in the temperature range 15–600°C. The structure of this compound is characterized by the mixed [Mg0.5Zr1.5(PO4)3]2– framework, whose large cavities are occupied by cesium atoms. Mg2+ and Zr4+ cations randomly occupy two crystallographically independent positions. The influence of the temperature factor on distortions of the framework polyhedra is analyzed. © 2005 Pleiades Publishing, Inc.
- Subjects
OPTICAL diffraction; PARTICLES (Nuclear physics); CATIONS; ATOMS; CRYSTALLIZATION; CRYSTALLOGRAPHY
- Publication
Crystallography Reports, 2005, Vol 50, Issue 5, p759
- ISSN
1063-7745
- Publication type
Article
- DOI
10.1134/1.2049392