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Title: New triazolium based ionic liquid crystals

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).
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Ruhr-Universitat Bochum
  2. Ruhr Universitat Bochum
  3. Ames Laboratory
Publication Date:
OSTI Identifier:
1166701
Report Number(s):
IS-J 8449
Journal ID: ISSN 2050-7526; JMCCCX
DOE Contract Number:
DE-AC02-07CH11358
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Materials Chemistry. C; Journal Volume: 2; Journal Issue: 37
Publisher:
Royal Society of Chemistry
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE