Please use this identifier to cite or link to this item: http://37.48.73.109:8080/jspui/jspui/handle/123456789/1501
Title: Preparation, spectral and thermal properties of new Isoflavone derivatives: mesomorphic properties and DFT studies
Authors: Othman Ibraheem Alajrawy, AbdulKarim-Talaq Mohammad, Rusul Yousif Alwari, Hosapalya Thimmaiah Srinivasa, Suaad Mohammed Husain Al-Majidi & Othman Ibraheem Alajrawy
Keywords: Isoflavon heterocycle; coumarin; liquid crystal; mesophase; dimers
Issue Date: 24-May-2018
Abstract: The four new homologous series of symmetric Isoflavon dimers were synthesised using varied alkyl/aryl diamines in linear sense. The chemical structures of the molecules were characterised by IR, NMR and CHNS analysis. Further, Liquid crystalline properties were verified using the combination of differential scanning calorimetry (DSC) and polarised optical microscope (POM). The molecular systems studied here reveal that LC property depends on the length of the middle connecting diamine spacer along with terminal alkyl spacer. The lower members favour to exhibit smectic A phase, whereas higher members exhibit nematic mesophase. The nature of LC property behaviours is supported by molecular geometries studied by DFT calculations.
URI: http://37.48.73.109:8080/jspui/jspui/handle/123456789/1501
ISSN: 0267-8292
Appears in Collections:البحوث العلمية



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