Amine basicity: measurements of ion pair stability in ionic liquid media |
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Authors: | Francesca D'Anna Renato Noto |
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Institution: | Dipartimento di Chimica Organica ‘E. Paternò’, Università di Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy |
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Abstract: | The stability constants relevant to the formation of amine/p-nitrophenol ion pairs have been determined in bmim]BF4] solution, in the presence of butylamine, piperidine, and triethylamine, by using spectrophotometric measurements. In order to evaluate how the ion pair stability is affected by ionic liquid structure, piperidine has been chosen as model amine for studies in bmim]PF6], bmim]NTf2], bm2im]NTf2] and in several bmim]BF4]/1,4-dioxane binary mixtures. Data obtained in ionic liquid solutions have been compared with those previously reported in conventional organic solvents. |
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