The unexpectedly challenging synthesis of 4-pyridyl-extended dithieno[3,2-b:2′,3′-d]phospholes via Stille cross-coupling is reported. The optical and electrochemical properties of the phosphoryl-bridged species were studied experimentally and computationally, and their properties were compared with those of their non-P-bridged congeners. The 4-pyridyl-extended dithienophospholes display quantitative
据报道,通过Stille交叉偶联合成了4-吡啶基延伸的双噻吩并[3,2- b:2',3'- d ]磷脂。通过实验和计算研究了磷酰基桥联物种的光学和电化学性质,并将其性质与非P桥联同类物的性质进行了比较。吡啶环甲基化后,4-吡啶基-延伸的二硫代磷腈在溶液中显示定量的发光量子产率,并且具有可逆的还原特征。由于它们具有很高的亮度,即使在水中也是如此,4-吡啶基延伸的二噻吩并磷光体是新型荧光探针的极有希望的候选者。