Tellurites of Hexavalent Uranium: First Observation of Polymerized (UO 4 ) 2– Tetraoxido Cores
| Autor: | Rimma S. Bubnova, Sergey N. Bocharov, Anastasiya I. Zadoya, Evgeny V. Nazarchuk, Oleg I. Siidra |
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| Rok vydání: | 2016 |
| Předmět: |
Thermal decomposition
Inorganic chemistry chemistry.chemical_element Uranium 010402 general chemistry 010403 inorganic & nuclear chemistry Uranyl 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Polymerization chemistry Reagent Physical chemistry Uranate Tellurium Telluric acid |
| Zdroj: | European Journal of Inorganic Chemistry. 2016:4083-4089 |
| ISSN: | 1099-0682 1434-1948 |
| DOI: | 10.1002/ejic.201600624 |
| Popis: | Two novel Ca2(UO3)(TeO3)2 (1) and K2(UO2)2O2(TeO3) (2) uranyl tellurites were obtained from telluric acid, used as a starting reagent for both compounds. In 1, the tetraoxido core is coordinated by TeO3 groups and UO4 squares polymerize into [UO3] chains. The tetraoxido core coordination modes in compound 1 are unique. New layered ⋡2[(UO2)2(TeO3)O2]2– topology is observed for 2. Both of the compounds were studied by the means of high-temperature X-ray diffraction. The thermal decomposition of 1 and 2 is different and leads to formation of uranate compounds. |
| Databáze: | OpenAIRE |
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