New triazolium based ionic liquid crystals

Journal Article · Wed Jan 01 00:00:00 EST 2014 · Journal of Materials Chemistry. C

DOI:https://doi.org/10.1039/c3tc31366b· OSTI ID:1166701

Stappert, Kathrin ^[1]; Unal, Derya ^[1]; Mallick, Bert ^[2]; Mudring, Anja-Verena ^[3]

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1. Ruhr-Universitat Bochum
2. Ruhr Universitat Bochum
3. Ames Laboratory

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).

• Research Organization: Ames Lab., Ames, IA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-07CH11358
• OSTI ID: 1166701
• Report Number(s): IS-J 8449; JMCCCX
• Journal Information: Journal of Materials Chemistry. C, Vol. 2, Issue 37; ISSN 2050-7526
• Publisher: Royal Society of Chemistry
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE