Mesomorphic thermal stabilities and nonlinear optical properties of fluorine containing liquid crystals

• Published in: Discover applied sciences 2024-09, Vol.6 (10), p.518-13, Article 518
• Main Authors: Kumari, P. Preethi, Bhattacharjee, Debanjan, Sonali, M. K., Nayak, Sandesha, Moorkoth, Sudheer, Gupta, Ashutosh, Angadiyavar, Priya, Bhagavath, Poornima
• Format: Article
• Language: English
• Subjects: Acids; Ambient temperature; Aniline; Benzoic acid; Chemical bonds; Crystallization; Crystals; Differential scanning calorimetry; Ethanol; Fluorine; Fluoroaniline; H-bonded liquid crystals; Light microscopy; Liquid crystals; Molecular structure; Nematic; Nonlinear optics; Optical microscopy; Optical properties; Protons; Pyridine moiety; Smectic-A; Solvents; Supramolecues; Synthesis; Temperature; Thermal analysis
• ISSN: 3004-9261; 2523-3963; 3004-9261; 2523-3971
• DOI: 10.1007/s42452-024-06188-3

H-bonded liquid crystals (HBLCs) are newly synthesized with PyBF viz., (4-pyridyl)-benzylidene-4′-fluoro aniline as the proton acceptor which is non-mesogenic and alkyloxy benzoic acids viz., n OBAs ( n = 3, 12) as the mesogenic proton donors. The H-bond formed is confirmed by FTIR spectroscopy. Polarizing Optical Microscopy confirmed the H-bonded compound’s mesomorphic textures, and the thermal analysis is carried out using a Differential Scanning Calorimeter. The influence of fluorine atom on mesomorphic stability is studied. The nonlinear optical properties of the H-bonded compound is studied using DFT theoretical approach. This work supports the SDG-9 of the United Nations. Graphical abstract