Unusual Fluorescent Properties of Novel Fluorophores, 6-Aryl-3,4-diphenyl-<i>α</i>-pyrone Derivatives
作者:Keisuke Hirano、Satoshi Minakata、Mitsuo Komatsu
DOI:10.1246/bcsj.74.1567
日期:2001.9
Novel fluorophores, 6-aryl-3,4-diphenyl-α-pyrones, were synthesized and their spectroscopic properties investigated in the form of evaporated films on plain glass slides, as well as in the solid and solution states. An electron-donating aryl group on the 6-position of the pyrones causes a red-shift in the absorption and fluorescent maxima. In the solid states, they show intense blue-to-orange fluorescence
合成了新型荧光团 6-芳基-3,4-二苯基-α-吡喃酮,并以普通载玻片上的蒸发膜形式以及固体和溶液状态研究了它们的光谱特性。吡喃酮的 6 位上的给电子芳基导致吸收和荧光最大值的红移。在固态下,它们显示出强烈的蓝色到橙色荧光,但在溶液中则没有。这种不寻常的荧光特性是由固定吡喃酮的 6-芳基引起的,是分子堆积的结果。这些相互作用诱导了辐射衰减的途径,这与仅在固态下的强荧光发射有关。