The following formula is an example of a phosphole compound of the present invention. The phosphole compound of the present invention has the characteristic of maintaining a high fluorescence quantum yield in a wide range of solvents from low-polarity solvents to high-polarity solvents, as well as the characteristic in which the fluorescence wavelength shifts to the longer wavelength side as the polarity of the solvent increases. Because of these characteristics, the phosphole compound of the present invention is expected to be used, for example, for quantitatively determining the polarity in the environment therearound by using the absorption wavelength and fluorescence wavelength thereof, or used as a new fluorescent probe dye or a highly efficient luminescent material in organic electronic devices.
下式是本发明
磷烯化合物的一个实例。本发明的
磷基化合物具有在从低极性溶剂到高极性溶剂的广泛溶剂中保持高荧光量子产率的特性,以及随着溶剂极性的增加,荧光波长向长波长一侧移动的特性。由于具有这些特性,本发明的
磷光化合物有望用于利用其吸收波长和荧光波长对周围环境的极性进行定量测定,或用作新型荧光探针
染料或有机电子设备中的高效
发光材料等。