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Pyrrolidinium imides : a new family of molten salts and conductive plastic crystal phases

MacFarlane, D. R., Meakin, P., Sun, J., Amini, N. and Forsyth, M. 1999, Pyrrolidinium imides : a new family of molten salts and conductive plastic crystal phases, Journal of physical chemistry B : condensed matter, materials, surfaces, interfaces and biophysical, vol. 103, no. 20, pp. 4164-4170.

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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Title Pyrrolidinium imides : a new family of molten salts and conductive plastic crystal phases
Author(s) MacFarlane, D. R.
Meakin, P.
Sun, J.
Amini, N.
Forsyth, M.
Journal name Journal of physical chemistry B : condensed matter, materials, surfaces, interfaces and biophysical
Volume number 103
Issue number 20
Start page 4164
End page 4170
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 1999-05-20
ISSN 1520-6106
1520-5207
Summary A new family of molten salts is reported, based on the N-alkyl, N-alkyl pyrrolidinium cation and the bis(trifluoromethane sulfonyl)imide anion. Some of the members of the family are molten at room temperature, while the smaller and more symmetrical members have melting points around 100 °C. Of the room-temperature molten salt examples, the methyl butyl derivative exhibits the highest conductivity; at 2 × 10-3 S/cm this is the highest molten salt conductivity observed to date at room temperature among the ammonium salts. This highly conductive behavior is rationalized in terms of the role of cation planarity. The salts also exhibit multiple crystalline phase behavior below their melting points and exhibit significant conductivity in at least their higher temperature crystal phase. For example, the methyl propyl derivative (mp = 12 °C) shows ion conductivity of 1 × 10-6 S/cm at 0 °C in its higher temperature crystalline phase.
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 ©1999, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030203
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