Designing ionic liquids with boron cluster anions: alkylpyridinium and imidazolium [nido-C(2)B(9)H(11)] and [closo-CB(11)H(12)] carborane salts

J. Dymon; R. Wibby; J. Kleingardner; J.M. Tanski; I.A. Guzei; John Holbrey; A.S. Larsen

doi:10.1039/b802374c

Designing ionic liquids with boron cluster anions: alkylpyridinium and imidazolium [nido-C(2)B(9)H(11)] and [closo-CB(11)H(12)] carborane salts

J. Dymon, R. Wibby, J. Kleingardner, J.M. Tanski, I.A. Guzei, John Holbrey, A.S. Larsen

School of Chemistry and Chemical Engineering

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34 Citations (Scopus)

Abstract

A range of new alkylpyridinium and imidazolium carborane salts with [nido-C2B9H12](-), [closo-CB11H12](-), and [RC2B11H11](-) (R = methyl or butyl) anions have been prepared and characterized by physical and thermal methods, including the solid state structures of five of the salts determined by single crystal X-ray diffraction. The tendency of the salts to form low-melting ionic liquids has been assessed; all the salts studied with [nido-C2B9H12](-) anions melted below 100 degrees C and, significantly, have melting points that are 25-85 degrees C lower than those of the corresponding [closo-CB11H12](-) analogs, demonstrating that a wider range of boron-rich ionic liquid materials can be readily accessed.

Original language	English
Pages (from-to)	2999-3006
Number of pages	8
Journal	Dalton Transactions
Volume	2008
Issue number	22
Early online date	02 May 2008
DOIs	https://doi.org/10.1039/b802374c
Publication status	Published - 2008

ASJC Scopus subject areas

General Chemistry

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title = "Designing ionic liquids with boron cluster anions: alkylpyridinium and imidazolium [nido-C(2)B(9)H(11)] and [closo-CB(11)H(12)] carborane salts",

abstract = "A range of new alkylpyridinium and imidazolium carborane salts with [nido-C2B9H12](-), [closo-CB11H12](-), and [RC2B11H11](-) (R = methyl or butyl) anions have been prepared and characterized by physical and thermal methods, including the solid state structures of five of the salts determined by single crystal X-ray diffraction. The tendency of the salts to form low-melting ionic liquids has been assessed; all the salts studied with [nido-C2B9H12](-) anions melted below 100 degrees C and, significantly, have melting points that are 25-85 degrees C lower than those of the corresponding [closo-CB11H12](-) analogs, demonstrating that a wider range of boron-rich ionic liquid materials can be readily accessed.",

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AU - Dymon, J.

AU - Wibby, R.

AU - Kleingardner, J.

AU - Tanski, J.M.

AU - Guzei, I.A.

AU - Holbrey, John

AU - Larsen, A.S.

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Y1 - 2008

N2 - A range of new alkylpyridinium and imidazolium carborane salts with [nido-C2B9H12](-), [closo-CB11H12](-), and [RC2B11H11](-) (R = methyl or butyl) anions have been prepared and characterized by physical and thermal methods, including the solid state structures of five of the salts determined by single crystal X-ray diffraction. The tendency of the salts to form low-melting ionic liquids has been assessed; all the salts studied with [nido-C2B9H12](-) anions melted below 100 degrees C and, significantly, have melting points that are 25-85 degrees C lower than those of the corresponding [closo-CB11H12](-) analogs, demonstrating that a wider range of boron-rich ionic liquid materials can be readily accessed.

AB - A range of new alkylpyridinium and imidazolium carborane salts with [nido-C2B9H12](-), [closo-CB11H12](-), and [RC2B11H11](-) (R = methyl or butyl) anions have been prepared and characterized by physical and thermal methods, including the solid state structures of five of the salts determined by single crystal X-ray diffraction. The tendency of the salts to form low-melting ionic liquids has been assessed; all the salts studied with [nido-C2B9H12](-) anions melted below 100 degrees C and, significantly, have melting points that are 25-85 degrees C lower than those of the corresponding [closo-CB11H12](-) analogs, demonstrating that a wider range of boron-rich ionic liquid materials can be readily accessed.

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Designing ionic liquids with boron cluster anions: alkylpyridinium and imidazolium [nido-C(2)B(9)H(11)] and [closo-CB(11)H(12)] carborane salts

Abstract

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