title: Mesomorphic properties of an homologous series of thioalkyl-terminated azomesogens.
abstract: A new homologous series (ten compounds) of 2-hydroxy azo compounds SR(n) (where n:1-10) were synthesized. Their structures were elucidated using spectroscopic techniques such as IR (Infrared), (1)H-NMR as well as elemental analysis. Mesomorphic properties and phase transitions were studied using polarized hot stage optical microscopy and differential scanning calorimetry (DSC), and are discussed as a function of the number of carbon atoms in the thioalkyl chain. It has been found that all compounds in the series are pure nematogens.
authors.affiliation: Department of Chemistry, College of Education, Basrah University, P.O. Box 716, Basrah, Iraq; E-Mail: Uhood1959@yahoo.com ; Tel.: +009647712616545;
authors.forename: Uhood J
authors.initials: UJ
authors.lastname: Al-Hamdani
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D050866:Liquid Crystals / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D044367:Phase Transition; D013055:Spectrophotometry, Infrared
chemical_list: D001391:Azo Compounds