一种能够识别CN-的传感器分子的合成及光谱研究

摘要

合成了一种含有亚胺基团的有机小分子传感器.它能够通过与CN-发生亲核加成反应而在水环境中识别CN-,并产生吸收光谱和颜色上的变化.通过非线性拟合得出该传感器分子与CN的结合常数为1×106 L/moL竞争实验表明,AcO-和其它阴离子的存在不会影响到传感器分子对CN-的检测.%A highly selective cyanide probe with an imine functionality as binding site was introduced with fast response.The detection of cyanide was performed via the nucleophilic attack of cyanide anion on the imine group of the probe,resulting in obvious absorbance changes and color changes.The binding constant toward CN- is 1× 106 L/mol for the probe.The competition experiments showed that the probe could detect CN- without interference of AcO- and other anions.