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

Sun, Jiazeng, MacFarlane, D. R. and Forsyth, M. 1997, Synthesis and properties of ambient temperature molten salts based on the quaternary ammonium ion, Ionics, vol. 3, no. 5-6, pp. 356-362.

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Title Synthesis and properties of ambient temperature molten salts based on the quaternary ammonium ion
Author(s) Sun, Jiazeng
MacFarlane, D. R.
Forsyth, M.
Journal name Ionics
Volume number 3
Issue number 5-6
Start page 356
End page 362
Publisher Springer
Place of publication [Berlin, Germany]
Publication date 1997-09
ISSN 0947-7047
1862-0760
Summary The synthesis of 16 tetraalkyl ammonium bis(trifluoromethane sulfonyl) imide salts, (CnH2n+1)4 +N -N (SO2CF3)2 (n = 1, 2, 3, 4),  (C2H5)2(i-C3H7)2 +N -N(SO2CF3)2, (C2H5)(CH3)(i-C3H7)2+N-N(SO2CF3)2, (n-C7H15)(C2H5)i-C3H7)2+N-N(SO2CF3)2 and (CnH2n+1)(CmH2m+1)3+N-N(SO2CF3)2 (n = 6,7,8; m = 1, 2, 4) 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.
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 ©1997, Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030268

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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