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http://hdl.handle.net/2289/7526| Title: | Coumarin substituted symmetric diaminopyridine molecules: Synthesis, mesomorphic characterizations and DFT studies |
| Authors: | Mohammad, AbdulKarim-Talaq Mohammed, Hameed Madlool Srinivasa, H.T. Ahmed Ameen, Wissam |
| Keywords: | 2,6-diaminopyridine Coumarin Heterocycles Azomethane Liquid crystals Nematic mesophase |
| Issue Date: | Sep-2020 |
| Publisher: | Elsevier B.V |
| Citation: | Journal of Molecular Liquids, 2020, Vol.314, p113782 |
| Abstract: | The 2, 6-diaminopyridine was symmetrically substituted with coumarins from a lateral side of the molecules. All the molecules characterized by standard spectroscopic methods such as infrared spectroscopy, and nuclear magnetic resonance spectroscopy techniques. Mesomorphic properties are evaluated by the differential scanning calorimetry and the polarized optical microscope. The measurements show that the lower members did not favour liquid crystal formation, while higher members are exhibiting liquid crystalline, namely Nematic mesophase. The DFT computations manifest the nature of liquid crystal geometrical aspects. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/7526 |
| ISSN: | 0167-7322 |
| Alternative Location: | https://doi.org/10.1016/j.molliq.2020.113782 |
| Copyright: | 2020 Elsevier B.V. |
| Additional information: | Supplementary Information Available |
| Appears in Collections: | Research Papers (SCM) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2020_J Molecular Liquids_Vol.314_P113782.pdf Restricted Access | Restricted Access | 2.14 MB | Adobe PDF | View/Open Request a copy |
| 2020_J Molecular Liquids_Vol.314_P113782_Suply Info.pdf Restricted Access | Restricted Access | 4.94 MB | Adobe PDF | View/Open Request a copy |
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