| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1314000 | Journal of Fluorine Chemistry | 2013 | 4 Pages |
Two new Schiff base compounds, tailed by the fluoroalkoxy, were synthesized in a three-step process. Those supramolecular structures constructed by hydrogen bonding show good liquid crystal properties with higher clear points and wider mesomorphic phase ranges than other analogs containing a terminal alkoxy chain. Investigation of the optical textures by polarizing microscopy reveals that terminal fluorinated substituents convert the nematic phase of supramolecular hydrogen-bonding complexes with terminal alkoxy chains into the smectic A phase of those with terminal fluoroalkoxy chains.
Graphical abstractTwo new schiff base compounds, with fluoroalkoxy as the terminal chains, were synthesized in three steps. Their supramolecular hydrogen bonding complexes show smectic A phase with higher clear points and wider mesomorphic phase ranges than those of the analogs with a terminal alkoxy chain.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We synthesized new schiff base with fluoroalkoxy as the terminal chains. ► The corresponding supramolecular liquid crystals show good mesomorphic properties. ► Wide mesomorphic phase ranges and high order were found. ► The corresponding supramolecular liquid crystals show smectic A phase. ► However, the analogs with alkoxy terminal chains show nematic phase.
