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)thia- diazole) 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 14π-electron systems. Using a series of these compounds, red-green-blue (RGB) fluorescent emission was achieved.

中文翻译：

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吡嗪-[2,3-g]喹喔啉衍生物的合成及性质：具有电子亲和性的蓝绿荧光材料

已合成标题化合物，并与 (1,2,5) 噻二唑 (3,4-g) 喹喔啉和苯并 (1,2-c:4,5-c' )双((1,2,5)噻二唑)衍生物。由于稠合的吡嗪环，它们是具有电子亲和力的蓝色或绿色荧光团。用稠合的吡嗪环取代稠合的 1,2,5-噻二唑环导致 ca 的红移。50 nm 的荧光光谱。这种取代还导致 14π 电子系统中电子亲和力的增加。使用一系列这些化合物，实现了红-绿-蓝 (RGB) 荧光发射。