Synthesis and characterization of the Anderson–Evans tungstoantimonate [Na5(H2O)18{(HOCH2)2CHNH3}2][SbW6O24]
| Autor: | Kleanthi Sifaki, Nadiia I. Gumerova, Annette Rompel, Gerald Giester |
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| Rok vydání: | 2021 |
| Předmět: |
Thermogravimetric analysis
Aqueous solution C-symmetry 010405 organic chemistry Chemistry Infrared spectroscopy Crystal structure 010402 general chemistry Condensed Matter Physics 01 natural sciences 0104 chemical sciences Inorganic Chemistry Crystallography Molecular vibration Phase (matter) Polyoxometalate Materials Chemistry Physical and Theoretical Chemistry |
| Zdroj: | Acta Crystallographica Section C Structural Chemistry. 77:420-425 |
| ISSN: | 2053-2296 |
| DOI: | 10.1107/s2053229621006239 |
| Popis: | A novel tungstoantimonate, [Na5(H2O)18{(HOCH2)2CHNH3}2][SbVWVI 6O24] (SbW6 ), was synthesized from an aqueous solution and structurally characterized by single-crystal X-ray diffraction, which revealed C2/c symmetry. The structure contains two serinol [(HOCH2)2CHNH3]+ and five Na+ cations, which are octahedrally surrounded by 18 water molecules, and one [SbVWVI 6O24]7− anion. The serinol molecules also play a critical role in the synthesis by acting as a mild buffering agent. Each of the WVI and SbV ions is six-coordinated and displays a distorted octahedral motif. A three-dimensional supramolecular framework is formed via hydrogen-bonding interactions between the tungstoantimonates and cations. Powder X-ray diffraction, elemental analysis, thermogravimetric analysis and IR spectroscopy were performed on SbW6 to prove the purity, to identify the water content and to characterize the vibrational modes of the crystallized phase. |
| Databáze: | OpenAIRE |
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