Synthesis and Characterization of New 1,3,5-Triazine Derivatives Based on Benzene Ring | ||
| Egyptian Journal of Chemistry | ||
| Article 46, Volume 64, Issue 12, December 2021, Pages 7301-7308 PDF (540.13 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2021.76395.3737 | ||
| Authors | ||
| Muhammed Shallal* 1; Hyffaa Hussien2 | ||
| 1Iraq Iraq | ||
| 2College of Science, Chemistry Department | ||
| Abstract | ||
| Liquid crystal materials have a number of ordinary uniqueness such as mechanical or electro-optical properties. New triazines derivatives compound was obtained starting from 1,3,5-triazine and1,3,5-trichlorobenzene. The synthesized compound consist of three-armed, one arm of phenol, and two armed of 2,4-bis(dodecyloxy)-6-ethynyl-1,3,5-triazine which built up from the reaction between 1,3,5-triazine and dodecan-1-ol. The substitution was achieved efficiently at appropriate temperatures under the argon atmosphere by cross-coupling. However, the two armed of 2,4-bis(dodecyloxy)-6-ethynyl-1,3,5-triazine on the periphery are considered for liquid crystal application. The target compound did not exhibit a transition phase in its pure state but, after ionic interaction with 4-DBA which already possesses a phase transition, it showed a phase transition and liquid crystal properties. The organic salts obtained after ionic interaction through hydrogen bonding were investigated for their liquid crystal properties by optical polarizing microscope (POM) and differential scanning calorimetry (DSC). The intermediate and final compounds were purified by column chromatography and confirmed their structures by spectroscopic techniques (mass spectrometry, 1H NMR, 13C NMR, and FT-IR,). | ||
| Keywords | ||
| Tri-armed structure; hydrogen bonding; ionic Interaction; liquid crystal | ||
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