Synthesis and Properties of Pyrazino- [2,3-g]quinoxaline Derivatives: Blue and Green Fluorescent Materials with Electron Affinity
作者:Katsuhiko Ono、Yutaka Okazaki、Masakazu Ohkita、Katsuhiro Saito、Yoshiro Yamashita
DOI:10.3987/com-04-10173
日期:——
The title compounds have been synthesized and their optical and electronic properties were surveyed in comparison to those of [1,2,5]thiadiazolo[3,4-g]quinoxaline and benzo[1,2-c:4,5-c']bis([1,2,5]thiadiazole) derivatives. They are blue or green fluorophores with electron affinity due to the fused pyrazine rings. Substitution of the fused pyrazine ring for the fused 1,2,5-thiadiazole one led to red shifts of ca. 50 nm in the fluorescence spectra. The substitution also resulted in an increase of electron affinity in the 14pi-electron systems. Using a series of these compounds, red-green-blue (RGB) fluorescent emission was achieved.