An experimental and computational study on the material dispersion of 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids
| Autor: | Raúl de la Fuente, Carlos Fernández, Yago Arosa, Elena López Lago, Bilal S. Algnamat |
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| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Work (thermodynamics) Range (particle radiation) Materials science Tetrafluoroborate General Physics and Astronomy Thermodynamics 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Chain length chemistry Ionic liquid Molecule Physical and Theoretical Chemistry 0210 nano-technology Dispersion (chemistry) Alkyl |
| Zdroj: | Physical Chemistry Chemical Physics. 22:14061-14076 |
| ISSN: | 1463-9084 1463-9076 |
| Popis: | The material dispersion of the [Ckmim][BF4] (k = 2, 3, 4, 6, 7, 8, 10) family of ionic liquids is measured at several temperatures over a broad spectral range from 300 nm to 1550 nm. The experimental curves are fitted to a modified three-resonance Sellmeier model to understand the effects of temperature and alkyl chain length on the dispersion behaviour. From the parameters of the fitting, we analyze the influence that the different constituents of these ionic liquids have on the dispersion behaviour. In addition, a semi-empirical approach combining simulated electronic polarizabilities and experimental densities for predicting the material dispersion is successfully tested by using a direct comparison with the experimental results. The limitations of this method are analyzed in terms of the molecular structure of the ionic liquids. The results of this work aim to increase our knowledge about how the molecular structure of an ionic liquid influences its material dispersion. Understanding this influence is fundamental to producing ionic liquids with tailored optical properties. |
| Databáze: | OpenAIRE |
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