Unusual Fluorescent Properties of Novel Fluorophores, 6-Aryl-3,4-diphenyl-α-pyrone Derivatives
Unusual Fluorescent Properties of Novel Fluorophores, 6-Aryl-3,4-diphenyl-α-pyrone Derivatives
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新型荧光团 6-芳基-3,4-二苯基-α-吡喃酮衍生物的异常荧光特性
DOI：
10.1246/bcsj.74.1567
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发表时间：
2001
影响因子：
4
通讯作者：
M. Komatsu
中科院分区：
文献类型：
--
作者：
K. Hirano;S. Minakata;M. Komatsu
合成了新型荧光团6-芳基-3，4-二苯基-α-吡喃酮，并研究了它们在普通载玻片上的蒸发膜以及固态和溶液态的光谱性质。在吡喃酮的6-位上的供电子芳基基团引起吸收和荧光最大值的红移。在固体状态下，它们显示出强烈的蓝色到橙子荧光，但在溶液中没有。这种不寻常的荧光性质是由固定吡喃酮的6-芳基引起的，并且是分子堆积的结果。这些相互作用诱导辐射衰变的途径，这是与强烈的荧光发射仅在固态。
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, but not in solution. This unusual fluorescent property is caused by fixing the 6-aryl group of the pyrones, and is the result of molecular packing. These interactions induce a pathway for radiative decay, which is associated with intense fluorescence emission only in the solid state.