Some (tetrahydroimidazo[1,5-a]pyridin-3-yl)phenols were reacted with boron trifluoride diethyl etherate and the resulting BF₂-functionalized compounds were fully characterized both in solution using ¹H, ¹³C, ¹¹B, ¹⁹F NMR spectroscopy and in the solid state (infrared, fluorescence, X-ray). When excited with UV light these boron difluoride derivatives show in dichloromethane solution an intense fluorescence emission in the UV region, with λ_max of emission varying from 357 to 390 nm. Good absolute quantum yields are recorded for most of the compounds. In the solid state, they are characterized by a strong blue emission (388–435 nm), with high absolute quantum yields (up to 0.68) and x,y color coordinates (CIE 1931) close to those expected for standard blue. Time-Dependent Density Functional Theory (TD-DFT) calculations were used to define the nature of the electronic transitions and excited states involved in the fluorescence process.

使一些（四氢咪唑并[1,5 - a ]吡啶-3-基）酚与三氟化硼二乙基醚化物反应，并使用¹ H，¹³ C，¹¹ B，¹⁹ F在溶液中充分表征所得的BF ₂官能化化合物NMR光谱和固态（红外，荧光，X射线）。当使用UV激发光，这些二氟化硼衍生物显示在二氯甲烷溶液中在UV区域的强烈的荧光发射，与λ_最大发射波长在357至390 nm之间变化。对于大多数化合物，均记录了良好的绝对量子产率。在固态状态下，它们的特点是发出强烈的蓝光（388–435 nm），具有很高的绝对量子产率（最高达0.68）和x，y色坐标（CIE 1931），接近于标准蓝色。随时间变化的密度泛函理论（TD-DFT）计算用于定义荧光过程中涉及的电子跃迁和激发态的性质。