Vibrational Spectroscopic Identification of the [AlCl<sub>2</sub>]<sup>+</sup> Cation in Ether-Containing Liquid Electrolytes
A Raman and IR study of AlCl<sub>3</sub>-based ethereal solutions is here presented and aims at identifying the [AlCl<sub>2</sub>]<sup>+</sup> cation, which has been so far unambiguously characterized by <sup>27</sup>Al NMR spectrometry. To do that, ex...
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2024-11-01
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| author | Gabriela P. Gomide Wagner A. Alves Andrzej Eilmes |
| author_facet | Gabriela P. Gomide Wagner A. Alves Andrzej Eilmes |
| author_sort | Gabriela P. Gomide |
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| description | A Raman and IR study of AlCl<sub>3</sub>-based ethereal solutions is here presented and aims at identifying the [AlCl<sub>2</sub>]<sup>+</sup> cation, which has been so far unambiguously characterized by <sup>27</sup>Al NMR spectrometry. To do that, experimental–theoretical vibrational spectroscopy was so employed, and the data are interpreted successfully. As a known amount of water is added to the tetrahydrofuran (THF)-containing electrolyte, a Raman band at 271 cm<sup>−1</sup> has its intensity increased along with the most intense band of [AlCl<sub>4</sub>]<sup>−</sup>, and such behavior is also seen for a band at 405 cm<sup>−1</sup> in the IR spectra. New bands at around 420 and 400 cm<sup>−1</sup> are observed in both Raman and IR spectra for the tetraglyme (G4)-based systems. The [AlCl<sub>2</sub>(THF)<sub>4</sub>]<sup>+</sup> complex, in the <i>cis</i> and <i>trans</i> forms, is present in the cyclic ether, while the <i>cis</i>-[AlCl<sub>2</sub>(G4)]<sup>+</sup> isomer is identified in the acyclic one. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2024-11-01 |
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| spelling | doaj-art-dcfeb828e68c48b1a485fe1a64c07c6a2024-11-26T18:15:45ZengMDPI AGMolecules1420-30492024-11-012922537710.3390/molecules29225377Vibrational Spectroscopic Identification of the [AlCl<sub>2</sub>]<sup>+</sup> Cation in Ether-Containing Liquid ElectrolytesGabriela P. Gomide0Wagner A. Alves1Andrzej Eilmes2Núcleo de Espectroscopia e Estrutura Molecular (NEEM), Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-900, MG, BrazilNúcleo de Espectroscopia e Estrutura Molecular (NEEM), Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-900, MG, BrazilFaculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, PolandA Raman and IR study of AlCl<sub>3</sub>-based ethereal solutions is here presented and aims at identifying the [AlCl<sub>2</sub>]<sup>+</sup> cation, which has been so far unambiguously characterized by <sup>27</sup>Al NMR spectrometry. To do that, experimental–theoretical vibrational spectroscopy was so employed, and the data are interpreted successfully. As a known amount of water is added to the tetrahydrofuran (THF)-containing electrolyte, a Raman band at 271 cm<sup>−1</sup> has its intensity increased along with the most intense band of [AlCl<sub>4</sub>]<sup>−</sup>, and such behavior is also seen for a band at 405 cm<sup>−1</sup> in the IR spectra. New bands at around 420 and 400 cm<sup>−1</sup> are observed in both Raman and IR spectra for the tetraglyme (G4)-based systems. The [AlCl<sub>2</sub>(THF)<sub>4</sub>]<sup>+</sup> complex, in the <i>cis</i> and <i>trans</i> forms, is present in the cyclic ether, while the <i>cis</i>-[AlCl<sub>2</sub>(G4)]<sup>+</sup> isomer is identified in the acyclic one.https://www.mdpi.com/1420-3049/29/22/5377vibrational spectroscopyaluminum chlorideethereal liquid electrolytes |
| spellingShingle | Gabriela P. Gomide Wagner A. Alves Andrzej Eilmes Vibrational Spectroscopic Identification of the [AlCl<sub>2</sub>]<sup>+</sup> Cation in Ether-Containing Liquid Electrolytes Molecules vibrational spectroscopy aluminum chloride ethereal liquid electrolytes |
| title | Vibrational Spectroscopic Identification of the [AlCl<sub>2</sub>]<sup>+</sup> Cation in Ether-Containing Liquid Electrolytes |
| title_full | Vibrational Spectroscopic Identification of the [AlCl<sub>2</sub>]<sup>+</sup> Cation in Ether-Containing Liquid Electrolytes |
| title_fullStr | Vibrational Spectroscopic Identification of the [AlCl<sub>2</sub>]<sup>+</sup> Cation in Ether-Containing Liquid Electrolytes |
| title_full_unstemmed | Vibrational Spectroscopic Identification of the [AlCl<sub>2</sub>]<sup>+</sup> Cation in Ether-Containing Liquid Electrolytes |
| title_short | Vibrational Spectroscopic Identification of the [AlCl<sub>2</sub>]<sup>+</sup> Cation in Ether-Containing Liquid Electrolytes |
| title_sort | vibrational spectroscopic identification of the alcl sub 2 sub sup sup cation in ether containing liquid electrolytes |
| topic | vibrational spectroscopy aluminum chloride ethereal liquid electrolytes |
| url | https://www.mdpi.com/1420-3049/29/22/5377 |
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