Abstract Three novel “Y”-shaped acceptor–π-donor–π-acceptor-type compounds were synthesized from 4, 4′-(hexylimino) bis (benzaldehyde) as a donor and 2-methylthiazolo [4, 5-b] quinoxaline derivatives as strong electron acceptors condensed by classical Knoevenagel condensation. Their absorption, emission, and thermal properties and electrochemical stability were investigated. It was found that the strong electron acceptor– ...