Unravelling the Structureof Protic Ionic Liquidswith Theoretical and Experimental Methods: Ethyl-, Propyl-and Butylammonium Nitrate Explored by Raman Spectroscopy and DFT Calculations. - Bodo, E.; Mangialardo, S.; Ramondo, F.; Ceccacci, F.; Postorino, P. (Journal of Physical Chemistry B, 2012)