作者:Raymond Bonnett、Majid Motevalli、Jason Siu
DOI:10.1016/j.tet.2004.07.023
日期:2004.9
acid to give the corresponding squaraines. The products are drawn with the anti geometry rather than the syn geometry generally shown in the past: the arguments for this formulation are given, including the analogy with 2,5-bis(4-ethyl-3,5-dimethylpyrrol-2-yl)-1,4-benzoquinone, for which an X-ray structure is presented. Solutions of the new bis(5-arylpyrrol-2-yl)squaraines have intense, sharp absorption
将2-苯基吡咯的各种衍生物与方酸缩合,得到相应的方酸。绘制的产品具有反几何形状,而不是过去通常显示的顺几何形状:给出了此公式的论点,包括与2,5-双(4-乙基-3,5-二甲基吡咯-2-基)的类比)-1,4-苯醌,其具有X射线结构。新的双(5-芳基吡咯-2-基)方胺的溶液具有强烈的,清晰的吸收带,并变为红色。与具有稠环系统,和缩合用2- styrylpyrrole芳基吡咯方形酸的缩合,得到具有高发色团的值为λ最大和ɛ最大。这些生色团中的某些发色团似乎适合于进一步的结构修饰,以产生在光电和光动力应用中具有潜力的材料。