Structure and properties of the (α-PicH)3[RhCl6] salt containing 2-methylpyridinium cations
| Autor: | Tatiyana I. Asanova, Pavel E. Plyusnin, Boris A. Kolesov, Sergey V. Korenev, I. A. Baidina, Danila B. Vasilchenko, Evgeniy Yu. Filatov |
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| Rok vydání: | 2022 |
| Předmět: |
chemistry.chemical_classification
Absorption spectroscopy Hydrogen bond Organic Chemistry Thermal decomposition Salt (chemistry) Crystal structure Analytical Chemistry X-ray absorption fine structure Inorganic Chemistry chemistry.chemical_compound Crystallography symbols.namesake chemistry Ionic liquid symbols Raman spectroscopy Spectroscopy |
| Zdroj: | Journal of Molecular Structure. 1250:131661 |
| ISSN: | 0022-2860 |
| DOI: | 10.1016/j.molstruc.2021.131661 |
| Popis: | The organic-inorganic hybrid salt consisting of 2-methylpyridinium cation (α-picoline, α-Pic) and hexachlororhodate(III) anion (α-PicH)3[RhCl6] was prepared in high yield. The compound was characterized using a variety of spectral techniques (UV–Vis, IR, Raman, XAFS) and its crystal structure was determined by X-ray single crystal diffraction. The system of strong N H…Cl hydrogen bonds is observed in the structure between organic cations and complex anions resulting in the formation of oppositely charged conglomerates {(α-PicH)4[RhCl6]}+ and {(α-PicH)2[RhCl6]}−. The chemical processes taking place during the thermal decomposition of the salt in He and H2/He atmospheres were studied, and the products of these transformations were identified. The unique thermal stability of [RhCl6]3− anions in an α-PicHCl ionic liquid and a range of temperature up to 250 °C was demonstrated using UV–Vis absorption spectroscopy. |
| Databáze: | OpenAIRE |
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