Phase equilibria in the Tl2MoO4-Pr2(MoO4)3-Hf(MoO4)2 system and crystal structure of TlPr(MoO4)2

Phase equilibria in the Tl2MoO4-Pr2(MoO4)3-Hf(MoO4)2 system and crystal structure of TlPr(MoO4)2

Subsolidus (450–480°C) phase relations in the Tl 2 MoO 4 -Pr 2 (MoO 4 ) 3 -Hf(MoO 4 ) 2 system have been studied by X-ray diffraction. The system has been shown to contain molybdates with the compositions Tl 5 PrHf(MoO 4 ) 6 (5: 1: 2), TlPrHf 0.5 (MoO 4 ) 3 (1: 1: 1), and Tl 2 PrHf 2 (MoO 4 ) 6.5 (2...

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Veröffentlicht in:Inorganic materials 2013-12, Vol.49 (12), p.1224-1226
Hauptverfasser: Grossman, V. G., Bazarov, B. G., Glinskaya, L. A., Bazarova, Zh. G.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Crystal structure
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
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Zusammenfassung:Subsolidus (450–480°C) phase relations in the Tl 2 MoO 4 -Pr 2 (MoO 4 ) 3 -Hf(MoO 4 ) 2 system have been studied by X-ray diffraction. The system has been shown to contain molybdates with the compositions Tl 5 PrHf(MoO 4 ) 6 (5: 1: 2), TlPrHf 0.5 (MoO 4 ) 3 (1: 1: 1), and Tl 2 PrHf 2 (MoO 4 ) 6.5 (2: 1: 4). Single crystals of the double molybdate TlPr(MoO 4 ) 2 have been grown for the first time from high-temperature solutions through spontaneous nucleation, and their crystal structure has been determined: tetragonal symmetry, sp. gr. P 4/ nnc , a = 6.3170(1) Å, c = 9.5529(2) Å, V = 381.204(12) Å 3 , Z = 2.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168513120066