https://doi.org/10.65770/QRIH4541
ABSTRACT
Ten homologues of 4-((E)-((2,6 Dibromo-4-((E)-phenyl diazinyl) phenyl) diazinyl) phenyl) amino)methyl) phenol have been synthesized to create a new homologous series of liquid crystals. This series shows both nematic and smectic mesophases and a middle-order melting behaviour. With alternating increases and reductions, the transition curve between solid, isotropic, and mesomorphic states does not exhibit a zigzag pattern. The nematic phase exhibits a droplet-nematic texture. This series’ mesomorphic characteristics and thermal stability are contrasted with those of structurally related substances. An optical hot-stage polarising microscope is used to measure transition temperatures, and analytical results validate the compounds’ molecular structures.
References
- [1] Kuang, Gui-Chao, et al. “Organogels and liquid crystalline properties of amino acid-based dendrons: a systematic study on structure–property relationship.” Chemistry of Materials 24.1 (2012): 71-80.
- [2] Murphy, Amanda R., and Jean MJ Frechet. “Organic semiconducting oligomers for use in thin film transistors.” Chemical reviews 107.4 (2007): 1066-1096.
- [3] Rathod, Suryajit L., et al. “Blue light-emitting Quinoline armed Thiacalix [4] arene 3D-scaffold: A systematic platform to construct fluorescent liquid crystals with bio-imaging applications.” Journal of Molecular Structure 1270 (2022): 133830.
- [4] Sharma, Vinay S., and R. B. Patel. “Mesomorphic study of novel chalconyl-ester-based nonisomeric series: Synthesis and characterization.” Molecular Crystals and Liquid Crystals 643.1 (2017): 13-27.
- [5] Adam, D., et al. “Transient photoconductivity in a discotic liquid crystal.” Physical review letters 70.4 (1993): 457.
- [6] Patel, R. B., M. L. Chauhan, and A. V. Doshi. “Synthesis and study of new homologous series of mesogens: n-butyl-p-(p’-n-alkoxy cinnamoyloxy) cinnamates.” Der Pharma Chemica 2.6 (2010): 157-164.
- [7] Dewar, Michael JS, and Ronald S. Goldberg. “Role of p-phenylene groups in nematic liquid crystals.” Journal of the American Chemical Society 92.6 (1970): 1582-1586.
- [8] Vogel, Arthur I. “Practical organic chemistry.” Long Man Group Lted, London (1974).
- [9] Thaker, B. T., and J. B. Kanojiya. “Mesomorphic properties of liquid crystalline compounds with biphenyl moiety containing azo-ester, azo-cinnamate central linkages and different terminal group.” Liquid Crystals 38.8 (2011): 1035-1055.
- Marinescu, Liliana, et al. “Optimized synthesis approaches of metal nanoparticles with antimicrobial applications.” Journal of Nanomaterials 2020 (2020): 1-14.
- Patel, R. B., M. L. Chauhan, and A. V. Doshi. “Synthesis and study of new homologous series of mesogens: n-butyl-p-(p’-n-alkoxy cinnamoyloxy) cinnamates.” Der Pharma Chemica 2.6 (2010): 157-164.
- Alamro, Fowzia S., et al. “Induced Nematic Phase of New Synthesized Laterally Fluorinated Azo/Ester Derivatives.” Molecules 26.15 (2021): 4546..
- Thaker, B. T., J. B. Kanojiya, and R. S. Tandel. “Effects of different terminal substituents on the mesomorphic behavior of some azo-schiff base and azo-ester-based liquid crystals.” Molecular Crystals and Liquid Crystals 528.1 (2010): 120-137.
- Dabhi, R., et al. “Process optimization for acid-amine coupling: a catalytic approach.” Current Chemistry Letters 12.1 (2023): 133-140.
- Sharma, Vinay S., et al. “Mesomorphic properties of liquid crystalline compounds with chalconyl central linkage in two phenyl rings.” Liquid Crystals Today 26.3 (2017): 46-54.
- Mundt, Otto,et al. “Element‐Element‐Bindungen. XI Kettenbildung bei kristallinen
Dimethyldichalkogenanen.” Zeitschrift für anorganische und allgemeine Chemie 632.10‐11 (2006): 1687-1709.
- Carbons, Hydro. Organizations Involved in MOU with The Maharaja Sayajirao University of Baroda. Diss. Faculty of Tech. &Engg. Sardar Patel Renewable Energy Research 2016 4 Faculty of Management Studies, The Maharaja Sayajirao University of Baroda, 2016.
- Kurian, G. Ph.D. Thesis Submitted to the Maharaja SayajiraoUni.Vadodara.(1977)
- Young, William R. “Nitrones: A Novel Class of Liquid Crystals.” Molecular Crystals and Liquid Crystals 10.1-2 (1970): 237-241.
- Yen, Fu-Sen, Lieh-Li Lin, and Jin-Long Hong. “Hydrogen-bond interactions between urethane− urethane and urethane− ester linkages in a liquid crystalline poly (ester− urethane).” Macromolecules 32.9 (1999): 3068-3079.
- Sharma, Vinay S., et al. “Fluorescein-appended calixarene-functionalized supramolecular AIE-active liquid crystalline materials for self-assembly and bio-imaging applications.” New Journal of Chemistry 47 (2023), 1444-1459.
- Gür, Mahmut, Hasan Kocaokutgen, and Murat Taş. “Synthesis, spectral, and thermal characterisations of some azo-ester derivatives containing a 4-acryloyloxy group.” Dyes and pigments 72.1 (2007): 101-108.
Download all article in PDF
![]()


