N-methyl-N-alkylpyrrolidinium nonafluoro-1-butanesulfonate salts: Ionic liquid properties and plastic crystal behaviour
Author(s) -
Stewart A. Forsyth,
Kevin J. Fraser,
Patrick C. Howlett,
Douglas R. MacFarlane,
Maria Forsyth
Publication year - 2006
Publication title -
green chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.221
H-Index - 221
eISSN - 1463-9270
pISSN - 1463-9262
DOI - 10.1039/b512902h
Subject(s) - plastic crystal , electrochemical window , melting point , ionic liquid , electrochemistry , electrolyte , solid state , ionic bonding , fast ion conductor , chemistry , crystal (programming language) , materials science , ionic conductivity , inorganic chemistry , crystallography , organic chemistry , ion , electrode , phase (matter) , computer science , programming language , catalysis
A series of N-methyl-N-alkylpyrrolidinium nonafluoro-1-butanesulfonate salts were synthesised and characterised. The thermophysical characteristics of this family of salts have been investigated with respect to potential use as ionic liquids and solid electrolytes. N-Methyl-N-butylpyrrolidinium nonafluoro-1-butanesulfonate (p1,4NfO) has the lowest melting point of the family, at 94 °C. Electrochemical analysis of p1,4 NfO in the liquid state shows an electrochemical window of ~6 V. All compounds exhibit one or more solid–solid transitions at sub-ambient temperatures, indicating the existence of plastic crystal phases.
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