title: Synthesis, characterization, optical properties and theoretical studies of novel substituted imidazo[1,5-a]pyridinyl 1,3,4-oxadiazole derivatives.
abstract: Novel imidazo[1,5-a]pyridinyl 1,3,4-Oxadiazole derivatives were synthesized and characterised by IR, (1)H 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.
authors: Taishan Medical University, Taian, Shandong, People's Republic of China.
authors: Yan-Qing
authors: YQ
authors: Ge
authors: Teng
authors: T
authors: Wang
authors: Gui Yun
authors: GY
authors: Duan
authors: Li Hua
authors: LH
authors: Dong
authors: Xiao Qun
authors: XQ
authors: Cao
authors: Jian Wu
authors: JW
authors: Wang
mesh_terms: D000042:Absorption; D060326:Chemistry Techniques, Synthetic; D008958:Models, Molecular; D008968:Molecular Conformation; D057054:Molecular Imaging; D055620:Optical Phenomena; D010069:Oxadiazoles / Q000138:chemical synthesis* / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: D010069:Oxadiazoles