An Chun-Ai, Guo Yanchao, Si Zhenjun, Duan Qian
School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, People's Republic of China.
J Fluoresc. 2014 May;24(3):847-54. doi: 10.1007/s10895-014-1362-7. Epub 2014 Feb 13.
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.
成功合成了三种紫外发光有机酸，分别为3,3'-(4-苯基-4H-1,2,4-三唑-3,5-二基)二苯甲酸（Tz-1）、4,4',4″-(4H-1,2,4-三唑-3,4,5-三基)三苯甲酸（Tz-2）和4,4'-(4-(4'-羧基-[1,1'-联苯]-4-基)-4H-1,2,4-三唑-3,5-二基)二苯甲酸（Tz-3），并通过1H NMR、红外吸收光谱和X射线单晶衍射对其进行了全面表征。发现Tz-1、Tz-2和Tz-3分别能发出以369 nm、365 nm和350 nm为中心的紫外光致发光光谱。测得Tz-1和Tz-2的发光量子产率分别为0.20和0.14。此外，还对Tz-1、Tz-2和Tz-3进行了密度泛函理论（DFT）和含时DFT计算。
