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Al3+ solvation in solutions of aluminum nitrate in a protic ionic liquid: Nuclear magnetic resonance verification of the solvation shell composition |
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| Authors: | Vladimir V. Matveev Alexandr Ievlev Mária Šoltésová Helena Štěpánková Erkki Lähderanta Luis M. Varela |
| Affiliation: | 1. Department of Nuclear Physics Research Methods, Saint Petersburg State University, Saint Petersburg, Russia;2. Department of Low Temperature Physics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic;3. Department of Physics, LUT-University of Technology, Lappeenranta, Finland;4. Grupo de Nanomateriais, Fotónica e Materia Branda, Departamento de Física de Partículas, Universidade de Santiago de Compostela, Santiago de Compostela, Spain |
| Abstract: | The closest environment of Al3+ cations was analyzed in detail in solutions of aluminum nitrate in the prototypical protic ionic liquid ethyl ammonium nitrate (EAN) using 1H and 14N nuclear magnetic resonance (NMR) spectra. For Al (NO3)3–EAN mixtures with different water content, a quantitative analysis of the integral intensities of the 1H and 14N signals was carried out and the composition of the first solvation shell of the aluminum cation was refined. |
| Keywords: | 1H 14N 27Al aqua complex ionic liquid NMR solvation shell |