Synthesis and Visible Spectral Behaviour of Some New Photosensitizers: Monomethine, Dimethine, Trimethine, Styryl and Mixed Cyanine Dyes
Abstract
The new photosensitizers, monomethine, dimethine, trimethine, styryl and mixed cyanine dyes incorporating pyrazolo/oxazole(thiazole) nuclei are prepared; the visible absorption spectra for all the synthesized cyanines were examined in 95% ethanol; structural confirmation is carried out by elemental analysis, IR and 1H NMR spectroscopy.