title: Acetylenic tetrathiafulvalene-dicyanovinyl donor-acceptor chromophores.
abstract: Compounds incorporating the tetrathiafulvalene (TTF) donor unit and one or two cyanoethynylethene (CEE) acceptor units were prepared by Knoevenagel condensations of highly unstable, TTF-linked propargylic aldehyde or ketone derivatives. The resulting TTF-CEEs are very strong chromophores with low-energy end-absorptions beyond 900 nm. The molecules experience reversible oxidations of the TTF unit, and the optical properties of the oxidised species were elucidated by spectroelectrochemistry.
authors.affiliation: Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100, Copenhagen Ø.
authors.forename: Asbjørn Sune
authors.initials: AS
authors.lastname: Andersson
authors.forename: François
authors.initials: F
authors.lastname: Diederich
authors.forename: Mogens Brøndsted
authors.initials: MB
authors.lastname: Nielsen