Rotational and translational mobility of a highly plastic salt : Dimethylpyrrolidinium thiocyanate Adebahr, J., Grimsley, M., Rocher, N. M., MacFarlane, D. R. and Forsyth, M. 2008, Rotational and translational mobility of a highly plastic salt : Dimethylpyrrolidinium thiocyanate, Solid state ionics, vol. 178, no. 35-36, pp. 1798-1803, doi: 10.1016/j.ssi.2007.12.017. Attached Files Name Description MIMEType Size Downloads Title Rotational and translational mobility of a highly plastic salt : Dimethylpyrrolidinium thiocyanate Author(s) Adebahr, J. Grimsley, M. Rocher, N. M. MacFarlane, D. R. Forsyth, M. orcid.org/0000-0002-4273-8105 Journal name Solid state ionics Volume number 178 Issue number 35-36 Start page 1798 End page 1803 Total pages 6 Publisher Elsevier Place of publication Amsterdam, The Netherlands Publication date 2008-02-15 ISSN 0167-2738 1872-7689 Keyword(s) plastic crystal pyrrolidinium thiocyanate phase transition rotational motions NMR raman Summary Thermal analysis, impedance spectroscopy, NMR and Raman spectroscopy have been used to investigate the plastic crystal dimethylpyrrolidinium thiocyanate in order to gain further insight into the properties of organic ionic plastic crystals. This compound has a solid–solid phase transition at 82 °C, and melts at 122 °C. A step increase in conductivity of about one order of magnitude is observed at the phase transition, followed by a decrease in activation energy for conduction. A large entropy gain occurs at the II → I transition, and 1H NMR linewidth measurements together with second moment calculations showed that the dimethylpyrrolidinium cation goes from a static state, to full isotropic tumbling. Raman measurements confirm that the cation as well as the anion exhibit increased rotational mobility when entering phase I. Language eng DOI 10.1016/j.ssi.2007.12.017 Field of Research 039999 Chemical Sciences not elsewhere classified Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2008, Elsevier B.V. Persistent URL http://hdl.handle.net/10536/DRO/DU:30030048 Document type: Journal Article Collections: Institute for Technology Research and Innovation GTP Research Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 10 Sep 2010, 15:07:34 EST Thu, 16 Sep 2010, 14:04:09 EST Thu, 16 Sep 2010, 14:05:30 EST Mon, 16 Jun 2014, 16:19:06 EST Thu, 11 Dec 2014, 16:43:02 EST Filtered Full Citation counts:   Cited 32 times in TR Web of Science Cited 31 times in Scopus Search Google Scholar Access Statistics: 1062 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Fri, 10 Sep 2010, 15:07:34 EST