School of Chemistry and Chemical Engineering, Zunyi Normal College, Zunyi 563006, China.
School of Chemistry and Chemical Engineering, Zunyi Normal College, Zunyi 563006, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2020 Sep 5;238:118384. doi: 10.1016/j.saa.2020.118384. Epub 2020 Apr 23.
Two D-π-A-π-D type solvatochromic fluorescence probes (JT1 and JT2) based on triphenylamine have been synthesized. The photophysical and electrochemical properties of these probes as well as their solvatochromic behavior were studied. The Stokes shifts of JT1 and JT2 reach 175 nm (6417.0 cm) and 218.6 nm (9916.7 cm) in the acetonitrile solution, respectively. There is an excellent linear correlation between the Stokes shifts and the E (30) solvent polarity values in different solvents. The high responsiveness of JT1 and JT2 to solvent polarity makes them promising candidates for solvatochromic fluorescence probes, especially for the detection of the polarity of non-proton solvents or the content of water in tetrahydrofuran.
基于三苯胺的两种 D-π-A-π-D 型溶剂致变色荧光探针 (JT1 和 JT2) 已被合成。研究了这些探针的光物理和电化学性质以及它们的溶剂致变色行为。在乙腈溶液中，JT1 和 JT2 的斯托克斯位移分别达到 175nm（6417.0cm）和 218.6nm（9916.7cm）。在不同溶剂中，斯托克斯位移与 E（30）溶剂极性值之间存在极好的线性相关性。JT1 和 JT2 对溶剂极性的高响应性使它们成为溶剂变色荧光探针的有前途的候选者，特别是用于检测非质子溶剂的极性或四氢呋喃中水分的含量。
