Research in the 2,5-diaryl-1,3,4-oxadiazole series. 1. Electronic structures and spectral-luminescence properties of substituted 2,5-diphenyl-1,3,4-oxadiazoles
Symmetrical and non-symmetrical 2,5-diaryl-1,3,4-oxadiazoles: synthesis and photophysical properties
作者:Codruţa C. Paraschivescu、Niculina D. Hădade、Anca G. Coman、Arnaud Gautier、Federico Cisnetti、Mihaela Matache
DOI:10.1016/j.tetlet.2015.05.005
日期:2015.6
We report herein the synthesis of 2,5-diaryl-1,3,4-oxadiazoles containing both electron-donating and withdrawing substituents as well as bis- and tris-2,5-disubstituted-1,3,4-oxadiazoles containing electron-donating substituents. The photophysical properties of the synthesized compounds were studied using UV–Vis and fluorescence spectroscopy. The aryl substitution pattern was found to have a marked