A 7-diethylaminocoumarin and 1-indanone-fused fluorescent dye (CI) was developed. CI was superior to traditional coumarins in terms of bathochromic shift in absorption and emission maxima (λ_abs/λ_em = 518/598 nm in ethanol). To illustrate its value, we rational designed a new hydrazine-selective fluorescent probe by the judicious anchoring of CI to malononitrile to form CI-DCV. Upon mixing with hydrazine, the dicyanovinyl group of CI-DCV was converted to the corresponding hydrazone, which inhibited the intramolecular charge transfer within the probe, thereby affording remarkable blue shifts in the absorption and fluorescence spectra. The proposed probe shows high selectivity toward hydrazine over other structural analogs and reductive species and can be applied in hydrazine detection in a variety of samples.

开发了7-二乙基氨基香豆素和1-茚满酮融合的荧光染料（CI）。CI优于传统香豆素在吸收和发射最大值红移的术语（λ _ABS /λ _EM  =乙醇五百九十八分之五百十八纳米）。为了说明其价值，我们通过明智地将CI固定在丙二腈上形成CI-DCV，合理设计了一种新的肼选择性荧光探针。与肼混合后，CI-DCV的双氰基乙烯基转化为相应的，抑制了within内分子内电荷的转移，从而在吸收光谱和荧光光谱中产生了明显的蓝移。所提出的探针对肼具有比其他结构类似物和还原物种更高的选择性，可用于各种样品中的肼检测。