Protic ionic liquids based on the dimeric and oligomeric anions: [(AcO)xHx−1]−

Johansson, K. M., Izgorodina, E. I., Forsyth, M., MacFarlane, D. R. and Seddon, K. R. 2008, Protic ionic liquids based on the dimeric and oligomeric anions: [(AcO)xHx−1]−, Physical chemistry chemical physics, vol. 10, no. 20, pp. 2972-2978.

Attached Files
Name Description MIMEType Size Downloads

Title Protic ionic liquids based on the dimeric and oligomeric anions: [(AcO)xHx−1]−
Formatted title Protic ionic liquids based on the dimeric and oligomeric anions: [(AcO)xHx−1]
Author(s) Johansson, K. M.
Izgorodina, E. I.
Forsyth, M.
MacFarlane, D. R.
Seddon, K. R.
Journal name Physical chemistry chemical physics
Volume number 10
Issue number 20
Start page 2972
End page 2978
Publisher Royal Society of Chemistry
Place of publication Cambridge, England
Publication date 2008
ISSN 1463-9076
1463-9084
Summary We describe a fluidity and conductivity study as a function of composition in N-methylpyrrolidine–acetic acid mixtures. The simple 1:1 acid–base mixture appears to form an ionic liquid, but its degree of ionicity is quite low and such liquids are better thought of as poorly dissociated mixtures of acid and base. The composition consisting of 3 moles acetic acid and 1 mole N-methylpyrrolidine is shown to form the highest ionicity mixture in this binary due to the presence of oligomeric anionic species [(AcO)xHx−1]− stabilised by hydrogen bonds. These oligomeric species, being weaker bases than the acetate anion, shift the proton transfer equilibrium towards formation of ionic species, thus generating a higher degree of ionicity than is present at the 1:1 composition. A Walden plot analysis, thermogravimetric behaviour and proton NMR data, as well as ab initio calculations of the oligomeric species, all support this conclusion.
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 ©2008, Owner Societies
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030176

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 47 times in TR Web of Science
Scopus Citation Count Cited 47 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 307 Abstract Views, 1 File Downloads  -  Detailed Statistics
Created: Fri, 10 Sep 2010, 15:09:43 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.