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http://hdl.handle.net/2289/2316| Title: | Synthesis and characterization of novel imidazolium-based ionic discotic liquid crystals with a triphenylene moiety |
| Authors: | Kumar, Sandeep Pal, Santanu Kumar |
| Keywords: | Ionic liquid crystals Triphenylene Discotic liquid crystals Columnar mesophase Imidazolium salts |
| Issue Date: | 11-Apr-2005 |
| Publisher: | Elsevier B.V. |
| Citation: | Tetrahedron Letters,2005, Vol.46, p2607-2610 |
| Abstract: | Two novel triphenylene-tethered imidazolium salts were synthesized either by the quaternization of 1-methylimidazole with an ω-bromo-substituted triphenylene or by the quaternization of a triphenylene-substituted imidazole with methyl iodide. Their chemical structures were determined by 1H NMR, 13C NMR, IR, UV spectroscopy and elemental analysis. The thermotropic liquid crystalline properties of these salts were investigated by polarizing optical microscopy and differential scanning calorimetry. These triphenylene-based imidazolium salts with bromide or iodide as counterion show columnar mesophase properties over a wide temperature range. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/2316 |
| ISSN: | 0040-4039 |
| Alternative Location: | http://dx.doi.org/10.1016/j.tetlet.2005.02.100 |
| Copyright: | 2005 Elsevier B.V. |
| Appears in Collections: | Research Papers (SCM) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2005 Tetrahedron Letters V46 p2607.pdf Restricted Access | Restricted Access | 228.64 kB | Adobe PDF | View/Open Request a copy |
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