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Fluorosulfonyl-(trifluoromethanesulfonyl)imide ionic liquids with enhanced asymmetry.
MedLine Citation:
PMID:  23302957     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
New ionic liquids with an asymmetric anion, fluorosulfonyl-(trifluoromethanesulfonyl)imide (FTFSI), were prepared and their chemical-physical properties were investigated. The ionic liquids based on N-methyl-N-propylpyrrolidinium, PYR(13), N-butyl-N-methylpyrrolidinium, PYR(14), and N-methoxyethyl-N-methylpyrrolidinium, PYR(12O1), exhibit high electrochemical stability (>5.5 V on platinum) and thermal stability (>250 °C in N(2) and >200 °C in O(2)). Due to the highly asymmetric anion, the prepared ionic liquids do not crystallize down to -150 °C while maintaining ionic conductivity above 10(-4) S cm(-1) even at -40 °C. Conductivity and viscosity values at 20 °C are in the range 3.5-5.0 mS cm(-1) and 30-60 mPa s respectively. PFG-NMR measurements showed high self-diffusion coefficients of cations and the anion.
Authors:
Jakub Reiter; Sebastian Jeremias; Elie Paillard; Martin Winter; Stefano Passerini
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-10
Journal Detail:
Title:  Physical chemistry chemical physics : PCCP     Volume:  -     ISSN:  1463-9084     ISO Abbreviation:  Phys Chem Chem Phys     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888160     Medline TA:  Phys Chem Chem Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
MEET Battery Research Centre, Institute of Physical Chemistry, University of Muenster, Corrensstrasse 28/30, 48149 Münster, Germany. stefano.passerini@uni-muenster.de elie.paillard@uni-muenster.de.
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