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Plastic crystal behaviour in tetraethylammonium dicyanamide Annat, Gary, Adebahr, Josefina, McKinnon, Ian R., MacFarlane, Douglas R. and Forsyth, Maria 2007, Plastic crystal behaviour in tetraethylammonium dicyanamide, Solid state ionics, vol. 178, no. 15-18, pp. 1065-1071. Attached Files Name Description MIMEType Size Downloads Title Plastic crystal behaviour in tetraethylammonium dicyanamide Author(s) Annat, Gary Adebahr, Josefina McKinnon, Ian R. MacFarlane, Douglas R. Forsyth, Maria Journal name Solid state ionics Volume number 178 Issue number 15-18 Start page 1065 End page 1071 Publisher Elsevier Place of publication Amsterdam, The Netherlands Publication date 2007-06-11 ISSN 0167-2738 1872-7689 Keyword(s) plastic crystal volume NMR conductivity Summary The plastic crystal tetraethylammonium dicyanamide ([N2,2,2,2][dca]) has been investigated with an emphasis on structure and dynamics in the plastic phase. It was found that almost all of the volume expansion occurs at the II → I transition, with no volume expansion at the melt transition (as normally observed for crystals). The conductivity of this material shows a rapid increase at temperatures below the II → I transition, reaching values ~ 10− 3 S/cm in Phase I, and 0.1 S/cm in the melt. The NMR measurements show that there is a sudden onset of rotational motions of the cations at the plastic transition; below this temperature the cations appear static. The rotational motion of the cation in Phase I has been discussed in terms of isotropic tumbling. Language eng 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 ©2007, Elsevier B.V. Persistent URL http://hdl.handle.net/10536/DRO/DU:30030054 Document type: Journal Article Collection: Institute for Technology Research and Innovation 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, 15:07:40 EST Thu, 16 Sep 2010, 14:15:22 EST Thu, 16 Sep 2010, 14:16:42 EST Mon, 16 Jun 2014, 16:19:26 EST Filtered Full Citation counts:   Cited 16 times in TR Web of Science Cited 17 times in Scopus Search Google Scholar Access Statistics: 338 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Fri, 10 Sep 2010, 15:07:40 EST

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