Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 2, Issue 37, Pages 7976-7986Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tc31366b
Keywords
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Funding
- German Science Foundation DFG [1191]
- DFG 110 Cluster of Excellence RESOLV
- DESY (Deutsches Elektronensynchrotron) [I-20100011]
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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 (C-10, C-12 and C-14) at the 1,2,3-triazolium cation also the anion has been varied (Br-, I-, I-3(-), 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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