Synthesis and characterization of new second-order NLO chromophores containing the isomeric indolizine moiety for electro-optical materials
作者:Alexey A. Kalinin、Maxim A. Smirnov、Liliya N. Islamova、Guzel M. Fazleeva、Tatyana A. Vakhonina、Alina I. Levitskaya、Olga D. Fominykh、Nataliya V. Ivanova、Ayrat R. Khamatgalimov、Irek R. Nizameev、Marina Yu. Balakina
DOI:10.1016/j.dyepig.2017.08.047
日期:2017.12
group in nonlinear optical (NLO) chromophores, we have designed and synthesized new push-pull chromophores (MPI-1)-V-TCF and (MPI-3)-V-TCF, having isomeric 3(1)-methyl-2-phenylindolizin-1(3)-yl (MPI-1(3)) electron donor and TCF acceptor, and compared them with dimethyl aniline (DMA) analogues. The Uv-Vis (linear optical) properties and solvatochromic behavior were also investigated; theoretical predictions
为了进一步探讨吲哚利嗪供体基团在非线性光学(NLO)生色团中的潜在应用,我们设计并合成了新型推挽生色团(MPI-1)-V-TCF和(MPI-3)-V-TCF,具有异构体3(1)-甲基-2-苯基吲哚嗪-1(3)-基(MPI-1(3))电子供体和TCF受体,并将它们与二甲基苯胺(DMA)类似物进行比较。还研究了Uv-Vis(线性光学)特性和溶剂变色行为。在DFT计算的基础上进行了分子NLO特性的理论预测。基于吲嗪发色团具有高的热稳定性:分解温度为348℃下进行(MPI-1)-V-TCF和343℃的(MPI-3)-V-TCF比发色团DMA-V-TCF高10–15°C 。庞大的苯基基团起着重要作用,它防止了客体-主体掺杂的聚合物薄膜中发色团的聚集。在NLO活动中,掺杂的(MPI-1)-V-TCF / PMMA和(MPI-3)-V-TCF / PMMA膜的NLO系数d 33分别为40和42 pm /