title: Synthesis and characterization of ultraviolet light-emitting organic acids.
abstract: Three ultraviolet light-emitting organic acids of 3,3'-(4-phenyl-4H-1,2,4-triazole-3,5-diyl)dibenzoic acid (Tz-1), 4,4',4″-(4H-1,2,4-triazole-3,4,5-triyl)tribenzoic acid (Tz-2), and 4,4'-(4-(4'-carboxy-[1,1'-biphenyl]-4-yl)-4H-1,2,4-triazole-3,5-diyl)dibenzoic acid (Tz-3) were successfully synthesized and fully characterized by the (1)H NMR, the IR absorption spectra, and the X-ray single crystal diffraction. It was found that Tz-1, Tz-2, and Tz-3 could give out the ultraviolet photoluminescent spectra centered at 369 nm, 365 nm and 350 nm, respectively. The luminescence quantum yields of Tz-1 and Tz-2 were measured to be 0.20 and 0.14, respectively. Additionally, the density functional theory (DFT) and the time-dependent DFT calculations were also carried out for Tz-1, Tz-2, and Tz-3.
authors: School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, People's Republic of China.
authors: Chun-Ai
authors: CA
authors: An
authors: Yanchao
authors: Y
authors: Guo
authors: Zhenjun
authors: Z
authors: Si
authors: Qian
authors: Q
authors: Duan
mesh_terms: D001565:Benzoates / Q000138:chemical synthesis* / Q000737:chemistry; D008027:Light; D049449:Luminescence; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D015394:Molecular Structure; D011789:Quantum Theory; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014230:Triazoles / Q000138:chemical synthesis* / Q000737:chemistry; D014466:Ultraviolet Rays
chemical_list: D001565:Benzoates; D014230:Triazoles