The synthesis and Uv-vis spectra of a series of styryl cyanine dyes are reported. substitutes are found to have some effect on the absorption maxima.

• 报道了7种属于半菁染料的苯乙烯噻菁染料的合成及紫外可见光谱研究。发现在甲醇溶液中,取代基对吸收光谱具有一定的影响。