Synthesis and structure of CsLi0.5Al0.5PO4

• Published in: Russian journal of inorganic chemistry Vol. 53; no. 6; pp. 861 - 866
• Main Authors: Zaripov, A. R., Asabina, E. A., Pet’kov, V. I., Kurazhkovskaya, V. S., Stefanovich, S. Yu, Rovny, S. I.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01.06.2008
• Subjects: Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Synthesis and Properties of Inorganic Compounds; Cesium; Second Harmonic Generation; Tridymite; Rietveld Method; Phosphoric Acid Solution
• ISSN: 0036-0236; 1531-8613
• DOI: 10.1134/S0036023608060089

A new phosphate CsLi 0.5 Al 0.5 PO 4 with a structure related to the β-tridymite structure has been synthesized by a precipitation method. X-ray powder diffraction, electron probe microanalysis, second harmonic generation of laser radiation, and IR spectroscopy have been used for studying the compound. Differential scanning calorimetry shows that the synthesized phosphate undergoes phase transitions at T tr = 68 and 130°C. The crystal structure of CsLi 0.5 Al 0.5 PO 4 was refined on the basis of X-ray powder diffraction data by the Rietveld method in space group P 2 1 / a ( Z = 8) with the unit cell parameters a = 17.8323(3) Å, b = 5.4250(1) Å, c = 9.3666(2) Å, β = 89.984(8)°, V = 906.10(9) Å 3 .