Hydrothermal synthesis and structural characterization of several complex rare earth tantalates: Ln2TaO5(OH) (Ln = La, Pr) and Ln3Ta2O9(OH) (Ln = Pr, Nd)

Reactions are reported of early rare earth oxides, RE2O3 (RE = La, Pr, Nd) with Ta2O5 under hydrothermal conditions (650 °C, 1.5 kbar) in concentrated aqueous hydroxide (20–30 M KOH) as a mineralizer. Under various stoichiometries several members of two new structure types were isolated, Ln2TaO5(OH)...

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Veröffentlicht in:	Dalton transactions : an international journal of inorganic chemistry 2019, Vol.48 (22), p.7704-7713
Hauptverfasser:	Sanjeewa, Liurukara D, Fulle, Kyle, McMillen, Colin D, Kolis, Joseph W
Format:	Artikel
Sprache:	eng
Schlagworte:	Crystal structure Crystallography Dimers Hydrothermal crystal growth Infrared spectroscopy Lanthanum Molecular structure Praseodymium Rare earth oxides Single crystals Stoichiometry Structural analysis Tantalates Tantalum Tantalum oxides Trace elements X-ray diffraction
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