Tetrathienyl-functionalized red- and NIR-absorbing BODIPY dyes appending various peripheral substituents
作者:Ping Liu、Feng Gao、Lina Zhou、Yu Chen、Zhijian Chen
DOI:10.1039/c6ob02612e
日期:——
fluorescence spectroscopy, and cyclic voltammetry. The DFT calculation of the frontier molecular orbitals of these dyes corroborates the observed effects of peripheral substituents on the optical and redox properties. These results reveal a good tunability of the optical and electronic properties of these BODIPYs by varying the peripheral groups at the α-positions of thienyl moieties, which leads to the
通过Stille交叉偶联反应,合成了一系列在BODIPY核的2,3,5,6-位具有不同噻吩基部分的硼二吡咯亚甲基染料(BODIPYs)4a-g。通过1 H NMR,13 C NMR,HRMS和IR光谱对新化合物进行表征。化合物4e的单晶结构通过X射线晶体学获得。通过紫外/可见光谱,荧光光谱和循环伏安法研究了这些染料的光学和电化学性质。这些染料的前沿分子轨道的DFT计算证实了外围取代基对光学和氧化还原特性的观察影响。这些结果通过改变噻吩基部分的α位的外围基团揭示了这些BODIPY的光学和电子性质的良好可调性,这导致吸收和发射到达NIR区域。