Synthesis and characterization of 1,3,4-oxadiazole derivatives containing alkoxy chains with different lengths
作者:Xiao-bing Zhang、Ben-chen Tang、Peng Zhang、Min Li、Wen-jing Tian
DOI:10.1016/j.molstruc.2007.01.032
日期:2007.11
compounds were confirmed by FT-IR, 1H NMR spectroscopy and elemental analysis. The optical and electrochemical properties of the compounds were investigated by UV–vis absorption and photoluminescence spectroscopy as well as cyclic voltammetry. The results show that introduction of two alkoxy groups whose electron-donating ability is stronger than that of methyl groups increases the electron density
摘要 1,3,4-恶二唑衍生物、1,4-双[(4-甲基苯基)-1,3,4-恶二唑基]三个系列的合成、光学性质、电化学性质、电子结构及在电致发光器件中的应用亚苯基 (OXD1), 5,5'-二-(4-甲基)-2,2'-p-(2,5-双烷氧基亚苯基)-双-1,3,4-恶二唑 (OXD2–n) 和 1, 4-双[(4-烷氧基苯基)-1,3,4-恶二唑基]亚苯基(OXD3-n)被报道。恶二唑化合物的分子结构由FT-IR、1H NMR光谱和元素分析证实。通过紫外-可见吸收和光致发光光谱以及循环伏安法研究了化合物的光学和电化学性质。结果表明,两个给电子能力强于甲基的烷氧基的引入增加了 OXD2-n(具有侧向烷氧基取代基)和 OXD3-n(具有端基)共轭链段的电子密度。烷氧基取代基),因此与 OXD1 相比,导致吸收最大红移。所研究化合物的 HOMO 和 LUMO 能级在 -2.78 至 -2.89 和