Abstract

Derivatives of ethyl 2-cyano-2-[3,4-dicyanopyridin-2(1H)-ylidene]acetate have been synthesized by reaction of 2-chloropyridine-3,4-dicarbonitriles with ethyl cyanoacetate. The synthesized compounds showed solid state fluorescence with the emission maxima located in the range λ 619–641 nm; the emission maxima in solution range from λ 392 to 486 nm, depending on the solvent.

中文翻译：

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2-氰基-2-[3,4-二氰基吡啶-2(1H)-亚基]乙酸乙酯衍生物的合成及光学性质

摘要

2-氰基-2-[3,4-二氰基吡啶-2(1 H )-亚基]乙酸乙酯的衍生物已通过2-氯吡啶-3,4-二腈与氰基乙酸乙酯反应合成。合成的化合物显示固态荧光，发射最大值位于 λ 619-641 nm 范围内；溶液中的发射最大值范围从 λ 392 到 486 nm，具体取决于溶剂。