Microwave assisted synthesis of a series of charge-transfer photosensitizers having quinoxaline-2(1H)-one as anchoring group onto TiO2 surface
作者:Mauricio Caicedo、Carlos A. Echeverry、Robson R. Guimarães、Alejandro Ortiz、Koiti Araki、Braulio Insuasty
DOI:10.1016/j.molstruc.2016.12.021
日期:2017.4
Abstract In this work, we present the synthesis of novel donor-acceptor compounds based on 3-methylquinoxaline-2(1H)one which follow an easy synthetic route, involving Knoevenagel reaction with electron-donor groups such as N,N-dimethylaminobenzene, ferrocene, triphenylamine (TPA) and ((E)-4,4'-(ethene-1,2-diyl) bis (N,N-diphenylaniline). Additionally, the optical properties were measured by means
摘要 在这项工作中,我们提出了基于 3-methylquinoxaline-2(1H)one 的新型供体-受体化合物的合成,该化合物遵循简单的合成路线,包括与电子供体基团如 N,N-二甲基氨基苯、二茂铁的 Knoevenagel 反应。 , 三苯胺 (TPA) 和 ((E)-4,4'-(ethene-1,2-diyl) bis (N,N-diphenylaniline)。此外,通过吸收和发射光谱测量光学性质,表明电化学实验进一步证实了推挽行为。最后,喹喔啉-2(1H)one 片段不仅具有广泛的吸收性,而且可以螯合到 TiO2 表面上的钛离子,允许激发态之间的强电子耦合。 - 染料的态能级和 TiO2 的导带。