Synthesis, Spectroscopic Characterization and Polymerization Abilities of Blue and Green Light Emitting Oxazol-5-one Fluorophores
作者:Gulsiye Ozturk Urut、Seher Aydin、Derya Topkaya、Elif Sahin、Serap Alp
DOI:10.1007/s10895-018-2234-3
日期:2018.5
absorption and fluorescence characteristics were studied in some solvents of varying polarities. The heterocyclic chromophores were fluorescent, with two of them, 3a and 3b, emitting blue light, whilst the other one, 3c, emitting green light. The emission maxima of the derivatives varied between 415 and 572 nm according as the extent of conjugation and solvent polarity. As solvent polarity increased
含恶唑啉-5-酮的荧光团的荧光的新噻吩基3A(4-(3- thiophenylmethylene)-2-苯基恶唑啉-5-酮),3B(4-(3- thiophenylmethylene)-2-(4-甲苯基)恶唑合成和表征了5-one)和3c(4-(3-硫代苯基亚甲基)-2-(4-硝基苯基)恶唑-5-酮)。在不同极性的一些溶剂中研究了新合成的恶唑-5-酮的吸收和荧光特性。杂环发色团是荧光的,其中两个3a和3b发出蓝光,而另一个3c,发出绿光。根据共轭程度和溶剂极性,衍生物的最大发射波长在415至572 nm之间变化。随着溶剂极性的增加,3c衍生物的发射光谱显示出较大的红移,这表明由于分子内电荷转移相互作用,荧光结构的偶极矩发生了很大变化。此外,通过与恶唑-5-酮杂环连接的硫代苯基的恶唑酮类聚合能力显示出实现了3a的共聚,但是未观察到均聚。