Issue 37, 2014

New triazolium based ionic liquid crystals

Abstract

A set of novel 1,2,3-triazolium based ionic liquid crystals was synthesized and their mesomorphic behaviour studied by DSC (differential scanning calorimetry), POM (polarizing optical microscopy) and SAXS (small angle X-ray scattering). Beside the variation of the chain length (C10, C12 and C14) at the 1,2,3-triazolium cation also the anion has been varied (Br, I, I3, BF4, SbF6, N(CN)2, Tf2N) to study the influence of ion size, symmetry and H-bonding capability on the mesophase formation. Interestingly, for the 1,3-didodecyl-1,2,3-triazolium cation two totally different conformations were found in the crystal structure of the bromide (U-shaped) and the triiodide (rod shaped).

Graphical abstract: New triazolium based ionic liquid crystals

Supplementary files

Article information

Article type
Paper
Submitted
17 Jul 2013
Accepted
21 May 2014
First published
21 May 2014

J. Mater. Chem. C, 2014,2, 7976-7986

New triazolium based ionic liquid crystals

K. Stappert, D. Ünal, B. Mallick and A. Mudring, J. Mater. Chem. C, 2014, 2, 7976 DOI: 10.1039/C3TC31366B

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