bridging ligand at the meso position enables the binding of two BF2 units to provide sufficient rigidity and enhanced electron‐withdrawing strength. Absorption and emission events thus take place in the red (λ≈600 nm); the fluorescence quantum yields can reach unity (0.96) and show little dependence on solvent polarity. The synthetic route was shortened to two steps starting from commercially available
报道了衍生自BODIPY核心的基本的,高度荧光的且易于获得的支架。通过使用
苯并咪唑作为介孔桥联
配体,可以使两个BF 2单元结合,从而提供足够的刚度和增强的吸电子强度。因此,吸收和发射事件以红色(λ≈600 nm); 荧光量子产率可以达到1(0.96),并且几乎不依赖于溶剂极性。从市售前体开始,将合成路线缩短为两个步骤,而制备则是模块化的,并且可以耐受各种
吡咯和
苯并咪唑部分。
丙炔基取代的
氟化物,各种卤化以及Knoevenagel型缩合反应被用来扩展这些新的光稳定荧光团的多功能性,我们将其称为BOIMPYs。