Collect. Czech. Chem. Commun. 1979, 44, 1413-1422

Spectral properties of zeromethinemerocyanines

Jaroslava Vávrováa, Miloš Vávraa and Zdeněk Babákb

a Fotochema, 500 09 Hradec Králové
b A. Zapotocky Military Academy, 600 00 Brno


Twenty six zeromethinemerocyanine dyes III were prepared by condensation of carbonylmethylene group containing heterocycles II with nitrogen-containing 2-alkylmercapto heterocycles I. Their absorption maxima in the visible spectral region in ethanolic solution, as well as of the dyes adsorbed on silver halide, were measured. IR spectra in chloroform and in KBr were also studied.