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Synthesis and properties of ambient temperature molten salts based on the quaternary ammonium ion

Synthesis and properties of ambient temperature molten salts based on the quaternary ammonium ion The synthesis of 16 tetraalkyl ammonium bis(trifluoromethane sulfonyl) imide salts,[Figure not available: see fulltext.] are reported in this paper. Trends in properties of these salts are discussed. The symmetrical tetraalkyl ammonium salts with the bis(trifluoromethyl sulfonyl) imide anion exhibited a lower melting point than that of corresponding ammonium halides. The salts with low symmetry ammonium cations were found to be of generally lower melting point, and many were stable liquids at room temperature. Several of these did not crystallize during cooling below room temperature and exhibited glass transition temperatures in the region of −60 °C∼−80 °C. A comparison of properties between the ammonium imide salts and corresponding trifluoromethane sulfonates is also presented. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Synthesis and properties of ambient temperature molten salts based on the quaternary ammonium ion

Sun, Jiazeng; MacFarlane, D.; Forsyth, M.
Ionics , Volume 3 (6) – Mar 21, 2006
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References (12)

Publisher
Springer Journals
Copyright
Copyright © 1997 by IfI - Institute for Ionics
Subject
Chemistry; Biomedicine general; Analytical Chemistry; Physical Chemistry; Electrochemistry; Optical and Electronic Materials
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/BF02375710
Publisher site
See Article on Publisher Site

Abstract

The synthesis of 16 tetraalkyl ammonium bis(trifluoromethane sulfonyl) imide salts,[Figure not available: see fulltext.] are reported in this paper. Trends in properties of these salts are discussed. The symmetrical tetraalkyl ammonium salts with the bis(trifluoromethyl sulfonyl) imide anion exhibited a lower melting point than that of corresponding ammonium halides. The salts with low symmetry ammonium cations were found to be of generally lower melting point, and many were stable liquids at room temperature. Several of these did not crystallize during cooling below room temperature and exhibited glass transition temperatures in the region of −60 °C∼−80 °C. A comparison of properties between the ammonium imide salts and corresponding trifluoromethane sulfonates is also presented.

Journal

Ionics – Springer Journals

Published: Mar 21, 2006

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