Indole-Based NLOphoric Donor-π-Acceptor Styryl Dyes: Synthesis, Spectral Properties and Computational Studies
作者:Santosh Chemate、Nagaiyan Sekar
DOI:10.1007/s10895-016-1901-5
日期:2016.11
charge transfer characteristics. The dyes showed solid state emission and emission in solid state was red shifted as compared to their emission in less polar solvents. Density Functional Theory [B3LYP/6–311 + G(d)] computations were used to correlate the structural, molecular, electronic and photo physical parameters of styryl dye with experimental study. Synthesized dyes were confirmed by using FT-IR, 1H
通过N-乙基吲哚-3-甲醛与不同活性亚甲基化合物的Knoevenagel缩合反应合成了基于吲哚核的供体-π-受体苯乙烯基发色团。研究了这些染料在不同溶剂中的吸收和发射特性。染料在397至469 nm之间的紫外和可见光区域显示出较宽的最大吸收,FWHM为50至75 nm。由于扩展的π-共轭体系,该苯乙烯基生色团显示出强大的分子内电荷转移特性。染料表现出固态发射,并且与在极性较小的溶剂中的发射相比,固态发射呈红移。使用密度泛函理论[B3LYP / 6–311 + G(d)]计算将苯乙烯染料的结构,分子,电子和光物理参数与实验研究相关联。1 H NMR,13 C NMR和HRMS光谱分析。