A novel photochromic diarylethene derivative bearing a benzocoumarin unit (1O) was synthesized. The derivative exhibits multi-addressable switching characteristics upon the stimulations with lights, proton and metal ions in acetonitrile. The protonated derivative shows good photochromism and photoswitchable fluorescence emission properties. The diarylethene derivative can selectively form a stable 1:1 complex with Cr³⁺, which triggers the turn-on fluorescence signal. The limit of detection (LOD) for Cr³⁺ was determined to be 0.013 μM. A molecular logic circuit was successfully constructed based on the fluorescent responses of 1O to different lights and chemicals.

合成了带有苯并香豆素单元（1O）的新型光致变色二芳基乙烯衍生物。该衍生物在乙腈中的光，质子和金属离子刺激下显示出多种可寻址的开关特性。质子化衍生物显示出良好的光致变色和光可切换的荧光发射性质。二芳基乙烯衍生物可以选择性地与Cr ³⁺形成稳定的1：1络合物，从而触发开启荧光信号。Cr ^3+的检出限（LOD）确定为0.013μM。基于1O对不同的光和化学物质的荧光响应，成功构建了分子逻辑电路。