Two 1,1,4,4-tetracyanobutadiene (TCBD) derivatives were prepared by [2+2]cycloaddition-retroelectrocyclization from ynamides bearing either a pyrene (1) or a perylene unit (2). In addition to panchromatic absorptions in 2, in the solid state, both compounds unexpectedly display NIR photoluminescence that could be detected up to about 1350 nm.

中文翻译：

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1,1,4,4-四氰基丁二烯衍生物的合成，表征和异常的近红外发光。

通过带有2（1）或add单元（2）的酰胺进行[2 + 2]环加成-逆电环化，制备了两个1,1,4,4-四氰基丁二烯（TCBD）衍生物。除了在固态状态下的2中的全色吸收外，两种化合物都出乎意料地显示出NIR光致发光，可以检测到约1350 nm的光。