One-Pot Hydrothermal Synthesis of TbIII13(GeO4)6O7(OH) and K2TbIVGe2O7: Preparation of a Stable Terbium4+ Complex

One-Pot Hydrothermal Synthesis of TbIII13(GeO4)6O7(OH) and K2TbIVGe2O7: Preparation of a Stable Terbium4+ Complex

Here, two terbium germanates have been synthesized via high-temperature and high-pressure hydrothermal synthesis with 20 M KOH as a mineralizer using Tb4O7 as a starting material. Tb13(GeO4)6O7(OH) crystallizes in trigonal space group R-3, is built up of isolated GeO4 units, and contains a complex a...

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Veröffentlicht in:Inorganic chemistry 2017-05, Vol.56 (11)
Hauptverfasser: Fulle, Kyle, Sanjeewa, Liurukara D., McMillen, Colin D., Wen, Yimei, Rajamanthrilage, Apeksha C., Anker, Jeffrey N., Chumanov, George, Kolis, Joseph W.
Format: Artikel
Sprache:eng
Schlagworte:
Hydrothermal synthesis
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
rare-earth germanate
terbium oxidation
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Zusammenfassung:Here, two terbium germanates have been synthesized via high-temperature and high-pressure hydrothermal synthesis with 20 M KOH as a mineralizer using Tb4O7 as a starting material. Tb13(GeO4)6O7(OH) crystallizes in trigonal space group R-3, is built up of isolated GeO4 units, and contains a complex arrangement of terbium oxide polyhedra. K2TbGe2O7 is a terbium(4+) pyrogermanate that is isostructural with K2ZrGe2O7 and exhibits a rare stable Tb4+ oxidation state in the solid state.
ISSN:0020-1669
1520-510X