标题：Synthesis, characterization, optical properties and theoretical studies of novel substituted imidazo[1,5-a]pyridinyl 1,3,4-oxadiazole derivatives
作者：Ge, Y.-Q.;Wang, T.;Duan, G.Y.;Dong, L.H.;Cao, X.Q.;Wang, J.W.
作者机构：[Ge, Y.-Q] Taishan Medical University, Taian, Shandong 271016, China;[ Wang, T] Taishan Medical University, Taian, Shandong 271016, China;[ Duan, G.Y] 更多
通讯作者地址：[Cao, XQ]Taishan Med Univ, Tai An 271016, Shandong, Peoples R China.
来源：Journal of Fluorescence
关键词：Fluorescence;Imidazo[1;5-a] pyridine;Nitrogen-bridgehead;Oxadiazole;Synthesis;UV-vis absorption
摘要：Novel imidazo[1,5-a]pyridinyl 1,3,4-Oxadiazole derivatives were synthesized and characterised by IR, ~1H NMR and HRMS.UV-vis absorption and fluorescence properties of these compounds in different solutions showed that the maximal emission wavelength was not significantly changed in different solvents; however, maximum absorption wavelength was blue-shifted with the increase of solvent polarity. Absorption λ_(max) and emission λ_(max) was less correlated with substituent groups on benzene rings. The calculated molecular orbital correlates well with their absorption.