“Synthesis of Some New Heterocyclic Compounds and Schiff Bases of 4-Phenyl-3-Ene-Butanone and Study Their Liquid Crystal Properties”. Journal of the College of Basic Education 21, no. 87 (December 26, 2022): 9–21. Accessed June 8, 2026. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/8848.