Crystal and liquid crystalline polymorphism in 1-alkyl-3-methylimidazolium tetrachloropalladate(II) salts

Christopher Hardacre, John Holbrey, P.B. McCormac, S.E.J. McMath, Mark Nieuwenhuyzen, Kenneth Seddon

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Abstract

1-Alkyl-3-methylimidazolium tetrachloropalladate(ii) salts ([C-n-mim](2)[PdCl4], n = 10, 12, 14, 16, 18) containing a single, linear alkyl-chain substituent on the cation have been synthesised and their behaviour characterised by differential scanning calorimetry, polarising optical microscopy and small-angle X-ray scattering. The salts display thermotropic polymorphism, exhibiting both crystal-crystal transitions and, for n = 14-18, the formation of a thermotropic smectic liquid crystalline phase.
Original languageEnglish
Pages (from-to)346-350
Number of pages5
JournalJournal of Materials Chemistry
Volume11
Issue number2
Publication statusPublished - 2001

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Hardacre, C., Holbrey, J., McCormac, P. B., McMath, S. E. J., Nieuwenhuyzen, M., & Seddon, K. (2001). Crystal and liquid crystalline polymorphism in 1-alkyl-3-methylimidazolium tetrachloropalladate(II) salts. Journal of Materials Chemistry, 11(2), 346-350.