Abstract
A new orthophosphate of rubidium, iron, and zirconium, crystallizing in the langbeinite structure (cubic system, sp. gr. P213, Z = 4), was synthesized and investigated by X-ray powder diffraction and IR spectroscopy. The structure of the Rb2FeZr(PO4)3 phosphate was refined by the Rietveld method using the neutron powder diffraction data (DN-2 time-of-flight diffractometer; Joint Institute for Nuclear Research, Dubna). This structure is characterized by a mixed framework [FeZr(PO4)3] with Rb atoms located in large cavities. Fe3+ and Zr4+ cations are distributed statistically over two independent crystallographic positions.
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Translated from Kristallografiya, Vol. 49, No. 6, 2004, pp. 991–994.
Original Russian Text Copyright © 2004 by Trubach, Beskrovny\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), A. Orlova, V. Orlova, Kurazhkovskaya.
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Trubach, I.G., Beskrovnyi, A.I., Orlova, A.I. et al. Synthesis and structural study of Rb2FeZr(PO4)3 phosphate with langbeinite structure. Crystallogr. Rep. 49, 895–898 (2004). https://doi.org/10.1134/1.1828132
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DOI: https://doi.org/10.1134/1.1828132