The synthesis and spectral studies of variously substituted 3-hydroxychromones have been carried out. A key relationship between the structural motif of synthesized 3-hydroxychromones (3-HCs) and their fluorescent properties was found. The chromones substituted with electron-donating group at 4′-position expressed the red shift of the N* and T* band and also exhibited the increased fluorescent intensity ratio while the chromones with electron-withdrawing group showed the blue shift of the N* and T* band. Therefore, these 3-HCs may behave as the possible fluorescent probes.
已经进行了各种取代的3-羟基
色酮的合成和光谱研究。发现了合成的 3-羟基
色酮 (3-HC) 的结构基序与其荧光特性之间的关键关系。 4'位被给电子基团取代的
色酮表现出N*和T*带的红移,并且荧光强度比增加,而带有吸电子基团的
色酮则表现出N*和T*带的蓝移。 T*带。因此,这些 3-HC 可能充当可能的荧光探针。