Yellow-red emitting, methoxy substituted triphenylamine-based styryl derivatives: Synthesis, photophysical properties, viscosity sensitivity, aggregation induced emission, NLO properties, and DFT study
作者:Sulochana Bhalekar、Shantaram Kothavale、Nagaiyan Sekar
DOI:10.1016/j.jphotochem.2019.112027
日期:2019.11
designed and synthesized to study the effect of auxiliary methoxy substituent on aggregation induced emission (AIE) and viscosity sensitivity. Instead of elongated, short conjugated dicyanovinyl derivatives are preferred for the improved AIE and viscosity sensitivity properties. The sensitivity study of fluorescence emission towards viscosity and polarity of organic solvents was investigated by UV visible
设计并合成了三种新型的基于三苯胺的荧光分子转子(FMR),以研究辅助甲氧基取代基对聚集诱导发射(AIE)和粘度敏感性的影响。为了改善AIE和粘度敏感性,优选使用长的,短的共轭二氰基乙烯基衍生物代替长的。通过紫外可见溶剂变色研究对荧光发射对有机溶剂的粘度和极性的敏感性进行了研究,而AIE研究则在DMF-水的混合溶剂中进行。所有化合物的特征在于1 H和1313 C NMR,质谱IR以及元素分析。它们在544–620 nm之间表现出非常好的固态发射。观察到它们的一阶和二阶超极化率较高(378-1755х10^ -36 esu)。“双光子吸收截面”在168-229 GM为范围3.有效电荷转移是使用马利肯静寂分析阐明。