Synthesis, Fluorescence Properties and Theoretical Calculations of Novel Stilbene Derivatives Based on 1,3,4-Oxadiazole Bearing Anthracene Core
作者:Xinwei Li、Huixiong Lu、Daohang He、Chun Luo、Jianjun Huang
DOI:10.1007/s10895-013-1231-9
日期:2013.9
Two novel stilbene derivatives bearing anthracene core based on 1,3,4-oxadiazole were efficiently synthesized and characterized by 1H-NMR, mass spectrometry and elemental analysis. The optical properties of the title compounds were investigated by UV–vis absorption and fluorescence emission spectra in different solvents. Chemical calculations were performed by density functional theory (DFT) at the (B3LYP)/6-31G* level. The results show the two compounds exhibit strong green fluorescence emission ranged from 489–493 nm, and the fluorescence quantum yield ranged from 0.78–0.92. Their HOMO and LUMO levels are (−5.44 eV, −2.25 eV) and (−5.45 eV, −2.28 eV), respectively. The influence of the solvent on the fluorescence intensities was also discussed.
通过 1H-NMR、质谱和元素分析,高效合成了两种以 1,3,4-噁二唑为基础、以蒽为核心的新型二苯乙烯衍生物。通过不同溶剂中的紫外-可见吸收光谱和荧光发射光谱研究了标题化合物的光学性质。化学计算采用密度泛函理论(DFT),在 (B3LYP)/6-31G* 水平上进行。结果表明,这两种化合物在 489-493 nm 波长范围内发出强烈的绿色荧光,荧光量子产率在 0.78-0.92 之间。它们的 HOMO 和 LUMO 水平分别为 (-5.44 eV, -2.25 eV) 和 (-5.45 eV, -2.28 eV) 。此外,还讨论了溶剂对荧光强度的影响。