A fluorescent diarylethene derivative covalently linked to a dibenzoylmethanato boron difluoride complex (DAE-BF₂DBM dyad 1) was synthesized and its fluorescence photoswitching properties were examined in solution, in nanoparticles and in powder solid. DAE-BF₂DBM dyad 1 underwent reversible fluorescence photswitching associated with the photochromic reactions in THF solution as well as in the solid states such as nanoparticles and powders upon alternate irradiation with ultraviolet (UV) and visible light. In addition, the efficient fluorescence photoswitching property based on the intermolecular energy transfer process in the densely packed solid states was clearly observed.

合成了共价键合到二苯甲酰甲基甲烷二氟化硼配合物上的荧光二芳基乙烯衍生物（DAE-BF ₂ DBM dyad 1），并在溶液，纳米颗粒和粉末固体中检查了其荧光光开关性能。DAE-BF ₂ DBM dyad 1在THF溶液以及固态（例如纳米颗粒和粉末）中交替发生紫外线和可见光照射后，发生与光致变色反应相关的可逆荧光光开关。另外，清楚地观察到了在密集堆积的固态中基于分子间能量转移过程的有效荧光光开关特性。