Microwave assisted synthesis of a series of charge-transfer photosensitizers having quinoxaline-2(1H)-one as anchoring group onto TiO2 surface

By Mauricio Caicedo, Carlos A. Echeverry, Robson R. Guimarães, Alejandro Ortiz, Koiti Araki, Braulio Insuasty

May 22, 2018

  • Year

  • Technique

  • Industry

Title

Microwave assisted synthesis of a series of charge-transfer photosensitizers having quinoxaline-2(1H)-one as anchoring group onto TiO2 surface

Author

Mauricio Caicedo, Carlos A. Echeverry, Robson R. Guimarães, Alejandro Ortiz, Koiti Araki, Braulio Insuasty

Year

2016

Journal

Journal of Molecular Structure

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 of the absorption and emission spectroscopy suggesting a push-pull behavior which was further confirmed by electrochemical experiments.

Full Article

http://www.sciencedirect.com/science/article/pii/S0022286016313114

Instrument

FP-8500

Keywords

Fluorescence, Chemical stability, Optical properties, Materials