Synthesis and photophysical properties of highly fluorescent 2-aryl-6-(aryleneethynylene)-1H-indoles
作者:Mariana Flores-Jarillo、Alejandro Alvarez-Hernandez、Rosa Ángeles Vazquez-García、Eduardo Arias、Ivana Moggio、José Román Torres
DOI:10.1016/j.dyepig.2016.05.017
日期:2016.10
cross-coupling in DMSO and fluoride promoted cyclization followed by N-alkylation. The photophysical properties of these compounds are described. Absorption and excitation spectra of these compounds were independent of the solvent polarity, while their emission spectra showed a pronounced dependence. Fluorescence quantum yields in solution were very high and decreased with solvent polarity; possible processes that
通过在DMSO中一锅Sonogashira交叉偶联和氟化物促进的环化,然后进行N-烷基化,制备了九种新颖的2-芳基-6-(亚芳基乙炔基)-1 H-吲哚。描述了这些化合物的光物理性质。这些化合物的吸收和激发光谱与溶剂极性无关,而它们的发射光谱显示出明显的依赖性。溶液中的荧光量子产率很高,并且随着溶剂极性的降低而降低。讨论了导致excessive的值过大的可能过程。循环伏安法研究表明不可逆的氧化还原过程,DFT计算表明它们发生在吲哚段。