Proton conducting ionic liquid organization as probed by NMR: self-diffusion coefficients and heteronuclear
Patrick Judeinstein1, Cristina Iojoiu, Jean-Yves Sanchez
1R.M.N. en Milieu Orienté, ICMMO, UMR CNRS 8182, Bâtiment 410, Université Paris-Sud, 91405 Orsay Cedex, France.
Abstract:
The structure and local organization of new proton conducting ionic liquids (PCILs) obtained by reacting alkylamine with various acids were deciphered by complementary 1- and 2-D heteronuclear NMR experiments. One the one hand, PFG NMR yielded the self-diffusion coefficients of the PCIL components (and thus information on their possible concerted translational motions), while on the other hand, 13C, 1H, and 15N, 1H correlation and intermolecular Overhauser experiments gave insight into the nature of protonic species and ion-pairing behavior.
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