作者:Herbert Meier、Bastian Mühling、Annette Oehlhof、Sonja Theisinger、Enzio Kirsten
DOI:10.1002/ejoc.200500449
日期:2006.1
Five oligo(2,5-thienyleneethynylene) series (OTE, n = 1–5), namely the push-pull substituted compounds 1b-5b and 1c-5c, the purely donor substituted compounds 1a-5a and two precursor series with protected and deprotected ethynyl end-groups, respectively, were obtained by a convergent synthetic strategy. The extension of the conjugated chromophores in the donor-acceptor OTE (DAOTE) series is superimposed
五个低聚(2,5-噻吩亚乙炔)系列(OTE,n = 1-5),即推挽取代化合物 1b-5b 和 1c-5c,纯供体取代化合物 1a-5a 和两个带有保护和通过收敛合成策略分别获得脱保护的乙炔基端基。供体-受体 OTE (DAOTE) 系列中共轭发色团的延伸由分子内电荷转移 (ICT) 叠加,该转移随着重复单元数量 n 的增加而减少。通过紫外/可见光吸收最大值 λmax (n) → λ∞ for n → ∞ 的收敛来研究整体效果。(© Wiley-VCH Verlag GmbH & Co. KGaA,69451 Weinheim,德国,2006 年)