设计合成了具有较长发射波长的苯并香豆素醛——8-二乙氨基-2-氧-2H-苯并[h]香豆素醛(BCA),通过吸收和荧光光谱研究其在不同溶剂中的光物理性质.结果表明,BCA具有明显的溶致变色效应和宽的颜色变化范围.随着溶剂极性的增加,其荧光发射可从蓝绿光变到红光,而荧光量子效率则从0.98减小到0.26.
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