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DOE OSTI · 1166701

New triazolium based ionic liquid crystals

Stappert, Kathrin·Unal, Derya·Mallick, Bert·Mudring, Anja-Verena
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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).

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36 MATERIALS SCIENCE

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Stappert, Kathrin, Unal, Derya, Mallick, Bert, Mudring, Anja-Verena. 2014-01-01. New triazolium based ionic liquid crystals. https://doi.org/10.1039/c3tc31366b

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36 MATERIALS SCIENCE↗