Anhydrous, Homoleptic Lanthanide Frameworks with the Pentafluoroethyltricyanoborate Anion
| Autor: | Johannes Landmann, Nikolai V. Ignat'ev, Christoph Kerpen, Sven H. Zottnick, Tatjana Ribbeck, Maik Finze, Klaus Müller-Buschbaum |
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| Rok vydání: | 2017 |
| Předmět: |
Lanthanide
010405 organic chemistry Metal ions in aqueous solution Inorganic chemistry 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry Thermogravimetry chemistry.chemical_compound chemistry Ionic liquid Anhydrous Physical chemistry Physical and Theoretical Chemistry Homoleptic Oxonium ion Powder diffraction |
| Zdroj: | Inorganic Chemistry. 56:2278-2286 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/acs.inorgchem.6b02984 |
| Popis: | Pentafluoroethyltricyanoborate frameworks of rare-earth metal ions of the general formula [Ln{C2F5B(CN)3}3(OH2)n] (Ln = La, Eu, Ho; n = 0, 3; [Ln13(OH2)n]) were synthesized using the oxonium salt (H3O)[C2F5B(CN)3] ((H3O)1) and lanthanide chlorides LnCl3·nH2O as starting compounds. Single-crystals of ∞3[La{C2F5B(CN)3}3] (∞3[La13]) are obtained from the room temperature ionic liquid (RTIL) [EMIm]1 using either a ionothermal approach or by recrystallization of anhydrous microcrystalline [La13] that is obtained from reactions in aqueous media after drying in a vacuum. Removal of water from [Ln13(OH2)3] (Ln = Eu, Ho) to give microcrystalline ∞3[Ln13] is achieved in a vacuum at elevated temperatures. All compounds were characterized by vibrational and NMR spectroscopy, thermogravimetry, and elemental analysis. The structures of the three-dimensional coordination polymers ∞3[Eu13(OH2)3] and ∞3[La13] were elucidated by single-crystal X-ray-diffraction. According to powder diffraction studies on anhydrous ∞3[Ln13]... |
| Databáze: | OpenAIRE |
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