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.
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.
Gáplovský
Anton
A
Institute of Chemistry, Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic. gaplovsky@fns.uniba.sk
Donovalová
Jana
J
Magdolen
Peter
P
Toma
Stefan
S
Zahradník
Pavol
P
D052160:Benzothiazoles; D012997:Solvents / Q000737:chemistry; D013057:Spectrum Analysis; D013844:Thiazoles / Q000737:chemistry*
D052160:Benzothiazoles; D012997:Solvents; D013844:Thiazoles; C005465:benzothiazole