Synthesis and effect of heterocycle modification on the spectroscopic properties of a series of unsymmetrical trimethine cyanine dyes
作者:Andrew Levitz、Safieh Tork Ladani、Donald Hamelberg、Maged Henary
DOI:10.1016/j.dyepig.2014.02.009
日期:2014.6
quantum yield and molar absorptivity. The aggregation of these cyanine dyes was studied and compared to a similar series of symmetric cyanine dyes. It was determined that the heterocycle has more effect on aggregation than the side chain and a dye with two different heterocycles will aggregate less than a dye with the same heterocycle. The dyes were also investigated for Lipinski Rule violations as their
碳菁染料是一类有机化合物,其中包含两个杂环,这些杂环充当通过共轭次甲基桥连接的电子供体和受体。本文报道了一系列16种新型不对称三甲胺花青染料的合成。通过各种光谱技术表征了它们的结构,并测量了它们的光学性质。使用随时间变化的密度泛函理论方法计算染料的吸收最大值,并且计算的吸收最大值与实验数据一致。在杂环上添加吸电子取代基例如卤素给出了更有利的光学性质,例如更高的量子产率和摩尔吸收率。对这些花青染料的聚集进行了研究,并将其与类似系列的对称花青染料进行了比较。已确定杂环比侧链对聚集的影响更大,并且具有两个不同杂环的染料的聚集将比具有相同杂环的染料的聚集少。还研究了这种染料是否违反Lipinski规则,因为它们的使用越来越普遍。体内应用。