functionalized with ethoxy chains. Changing the number and the position of these functional groups determines differences in the self-assembly in the solid state, as well as in the photophysical properties of the targeted molecules. As anticipated by theoretical calculations of the HOMO-LUMO gap of each molecule, the presence of ethoxy chains in o- and p-positions determines up to 20 nm red-shifts
这项工作描述了在 2 位带有苯环的新型苯并
碲唑系列的高产率合成,该苯环被不同的乙氧基链官能化。改变这些官能团的数量和位置决定了固态自组装的差异,以及目标分子的光物理特性。正如对每个分子的 HOMO-LUMO 间隙的理论计算所预期的那样,与未取代的苯并
碲唑相比,邻位和对位乙氧基链的存在决定了吸收峰中高达 20 nm 的红移。同样,对于那些带有o的衍
生物,在125 Te NMR 光谱的
化学位移中观察到更显着的变化。-和对-乙氧基官能化。