Solid state NMR analysis of polypyrrole grown in a phosphonium ionic liquid

Pringle, J. M., MacFarlane, D. R. and Forsyth, M. 2005, Solid state NMR analysis of polypyrrole grown in a phosphonium ionic liquid, Synthetic metals, vol. 155, no. 3, pp. 684-689, doi: 10.1016/j.synthmet.2005.08.029.

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Title Solid state NMR analysis of polypyrrole grown in a phosphonium ionic liquid
Author(s) Pringle, J. M.ORCID iD for Pringle, J. M.
MacFarlane, D. R.
Forsyth, M.ORCID iD for Forsyth, M.
Journal name Synthetic metals
Volume number 155
Issue number 3
Start page 684
End page 689
Publisher Elsevier S.A.
Place of publication Basel, Switzerland
Publication date 2005-12-15
ISSN 0379-6779
Keyword(s) nuclear magnetic resonance spectroscopy
electrochemical polymerization
polypyrrole and derivatives
Summary 31P, 19F and 13C solid state NMR analysis has been used to investigate the intercalation/de-intercalation of both anions and cations in electrochemically synthesized polypyrrole films. Use of a phosphonium-based ionic liquid, tri(hexyl)(tetradecyl)phosphonium bis(trifluoromethanesulfonyl)amide, allows the separate detection of the cation and anion by analysis of the phosphorous and fluorine resonances, respectively. Initial results indicate the incorporation of both cations and anions during film growth in the ionic liquid. There is a notable change in the 31P chemical shift of the cation on incorporation into the film, consistent with a significant change in environment compared to the pure ionic liquid. Despite its large size, the phosphonium cation can be completely expelled from the film by oxidation.
Language eng
DOI 10.1016/j.synthmet.2005.08.029
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 ©2005, Elsevier B.V.
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