Synthesis and unexpected halochromism of carbazole-functionalized dithienophospholes
作者:Monika Stolar、Thomas Baumgartner
DOI:10.1039/c2nj40022g
日期:——
π-conjugated donor–acceptor (D/A) chromophores using dithieno[3,2-b:2′,3′-d]phosphole oxide as an acceptor and 3,6-carbazole as a donor component have been synthesized and characterized. The studies involved several molecular species with D–A, A–D–A, D–A–D architecture, as well as a polymeric species (D–A)n. The different photophysical properties of the systems can be attributed to the carbazole unit
合成了一系列以二噻吩并[3,2- b:2',3'- d ]氧化磷作为受体和3,6-咔唑作为供体组分的π共轭供体-受体(D / A)发色团。和特点。研究涉及几种具有D–A,A–D–A,D–A–D结构的分子种类以及聚合物种类(D–A)n。该系统的不同光物理性质可以归因于咔唑单元事实上充当π-共轭系统的苯胺类。用酸处理施主-受主材料会导致吸收和发射波长发生明显的红移,并且发现该过程是可逆的。调查通过 密度泛函理论(DFT)的计算揭示了质子化过程中意外的红移的性质。