title: Spectroscopic study of 2-[2-(4-cyclaminophenyl)ethen-1-yl] benzothiazoles and their N-allylbenzothiazolium bromides. Solvent and substituent effects on their ultraviolet-visible and fluorescence spectra.
abstract: UV-vis and fluorescence spectra of 2-[2-(4-cyclaminophenyl)ethen-1-yl] benzothiazoles 1 and their N-allylbenzothiazolium bromides 2 have been measured and interpreted. The substitution and solvent effects on electronic structure and spectra have been investigated. The benzothiazolium salts substituted with saturated cyclamines show strong push-pull character and can be used as potential NLO materials. Formation of aggregated structures was observed at higher concentrations of the benzothiazolium bromides.
authors.affiliation: Institute of Chemistry, Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic. gaplovsky@fns.uniba.sk
authors.forename: Anton
authors.initials: A
authors.lastname: Gáplovský
authors.forename: Jana
authors.initials: J
authors.lastname: Donovalová
authors.forename: Peter
authors.initials: P
authors.lastname: Magdolen
authors.forename: Stefan
authors.initials: S
authors.lastname: Toma
authors.forename: Pavol
authors.initials: P
authors.lastname: Zahradník
mesh_terms: D052160:Benzothiazoles; D012997:Solvents / Q000737:chemistry; D013057:Spectrum Analysis; D013844:Thiazoles / Q000737:chemistry*
chemical_list: D052160:Benzothiazoles; D012997:Solvents; D013844:Thiazoles; C005465:benzothiazole