A variety of alkynylazinium cationic (D-π-A + ) chromophores were prepared in good yields by the reaction of bromoazinium (pyridinium, quinolinium, and isoquinolinium iodides) with alkynes under Sonogashira conditions. The analysis of the experimentally recorded spectra is supported by quantum chemical calculations using restricted configuration interaction and density functional methods. First-order
在 Sonogashira 条件下,通过
溴肼(
吡啶、
喹啉和
碘化
异喹啉)与炔反应,以良好的收率制备了多种炔基阳离子 (D-π-A + ) 发色团。使用受限构型相互作用和密度泛函方法的量子
化学计算支持对实验记录光谱的分析。还通过超瑞利散射实验和计算程序研究了 (D-π-A + ) azinium 基阳离子作为一类新的二阶非线性光学 (NLO) 生色团的一阶超极化率。