Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group

Jan Leys; Chandra Shekhar Pati Tripathi; Christ Glorieux; Stefan Zahn; Barbara Kirchner; Stephane Longuemart; Kallidanthiyil Chellappan Lethesh; Peter Nockemann; Wim Dehaen; Koen Binnemans

doi:10.1039/c4cp00259h

Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group

Jan Leys^*, Chandra Shekhar Pati Tripathi, Christ Glorieux, Stefan Zahn, Barbara Kirchner, Stephane Longuemart, Kallidanthiyil Chellappan Lethesh, Peter Nockemann, Wim Dehaen, Koen Binnemans

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

The electrical conductivity of a series of pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids, functionalized with a nitrile (cyano) group at the end of an alkyl chain attached to the cation, was studied in the temperature range between 173 K and 393 K. The glass formation of the ionic liquids is influenced by the length of the alkyl spacer separating the nitrile function from the pyrrolidinium ring. The electrical conductivity and the viscosity do not show a monotonic dependence on the alkyl spacer length, but rather an odd-even effect. An explanation for this behavior is given, including the potential energy landscape picture for the glass transition.

Original language	English
Pages (from-to)	10548-10557
Number of pages	10
Journal	Physical Chemistry Chemical Physics
Volume	16
Issue number	22
Early online date	24 Mar 2014
DOIs	https://doi.org/10.1039/c4cp00259h
Publication status	Published - 14 Jun 2014

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Leys, J., Tripathi, C. S. P., Glorieux, C., Zahn, S., Kirchner, B., Longuemart, S., Lethesh, K. C., Nockemann, P., Dehaen, W., & Binnemans, K. (2014). Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group. Physical Chemistry Chemical Physics, 16(22), 10548-10557. https://doi.org/10.1039/c4cp00259h

Leys, Jan ; Tripathi, Chandra Shekhar Pati ; Glorieux, Christ et al. / Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group. In: Physical Chemistry Chemical Physics. 2014 ; Vol. 16, No. 22. pp. 10548-10557.

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title = "Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group",

abstract = "The electrical conductivity of a series of pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids, functionalized with a nitrile (cyano) group at the end of an alkyl chain attached to the cation, was studied in the temperature range between 173 K and 393 K. The glass formation of the ionic liquids is influenced by the length of the alkyl spacer separating the nitrile function from the pyrrolidinium ring. The electrical conductivity and the viscosity do not show a monotonic dependence on the alkyl spacer length, but rather an odd-even effect. An explanation for this behavior is given, including the potential energy landscape picture for the glass transition.",

author = "Jan Leys and Tripathi, {Chandra Shekhar Pati} and Christ Glorieux and Stefan Zahn and Barbara Kirchner and Stephane Longuemart and Lethesh, {Kallidanthiyil Chellappan} and Peter Nockemann and Wim Dehaen and Koen Binnemans",

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Leys, J, Tripathi, CSP, Glorieux, C, Zahn, S, Kirchner, B, Longuemart, S, Lethesh, KC, Nockemann, P, Dehaen, W & Binnemans, K 2014, 'Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group', Physical Chemistry Chemical Physics, vol. 16, no. 22, pp. 10548-10557. https://doi.org/10.1039/c4cp00259h

Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group. / Leys, Jan; Tripathi, Chandra Shekhar Pati; Glorieux, Christ et al.
In: Physical Chemistry Chemical Physics, Vol. 16, No. 22, 14.06.2014, p. 10548-10557.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group

AU - Leys, Jan

AU - Tripathi, Chandra Shekhar Pati

AU - Glorieux, Christ

AU - Zahn, Stefan

AU - Kirchner, Barbara

AU - Longuemart, Stephane

AU - Lethesh, Kallidanthiyil Chellappan

AU - Nockemann, Peter

AU - Dehaen, Wim

AU - Binnemans, Koen

PY - 2014/6/14

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N2 - The electrical conductivity of a series of pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids, functionalized with a nitrile (cyano) group at the end of an alkyl chain attached to the cation, was studied in the temperature range between 173 K and 393 K. The glass formation of the ionic liquids is influenced by the length of the alkyl spacer separating the nitrile function from the pyrrolidinium ring. The electrical conductivity and the viscosity do not show a monotonic dependence on the alkyl spacer length, but rather an odd-even effect. An explanation for this behavior is given, including the potential energy landscape picture for the glass transition.

AB - The electrical conductivity of a series of pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids, functionalized with a nitrile (cyano) group at the end of an alkyl chain attached to the cation, was studied in the temperature range between 173 K and 393 K. The glass formation of the ionic liquids is influenced by the length of the alkyl spacer separating the nitrile function from the pyrrolidinium ring. The electrical conductivity and the viscosity do not show a monotonic dependence on the alkyl spacer length, but rather an odd-even effect. An explanation for this behavior is given, including the potential energy landscape picture for the glass transition.

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DO - 10.1039/c4cp00259h

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JF - Physical Chemistry Chemical Physics

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Leys J, Tripathi CSP, Glorieux C, Zahn S, Kirchner B, Longuemart S et al. Electrical conductivity and glass formation in nitrile-functionalized pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids: chain length and odd–even effects of the alkyl spacer between the pyrrolidinium ring and the nitrile group. Physical Chemistry Chemical Physics. 2014 Jun 14;16(22):10548-10557. Epub 2014 Mar 24. doi: 10.1039/c4cp00259h