Synthesis and Characterization of Eu4(PMA)3(phen)0.75·7H2O Ternary Luminescent Complex
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第2期
论文作者：Liu Guixia Ren Huijuan Cui Zhenfeng Hong Guangyan
Key words：europium; pyromellitic acid; 1,10-phenanthroline; luminescence; complex; rare earths;
Abstract: Eu(Ⅲ)-Pyromellitic acid[PMA]-1,10-phenanthroline (phen) ternary luminescent complex was prepared in ethanol and water mixed solvent. The elemental analysis, inductively coupled plasma-atomic emission spectroscopy (ICP-AES) fourier-transform infrared spectroscopy (FT-IR) indicates that its chemical constitution is Eu4(PMA)3(phen)0.75·7H2O. TG-DTA curves indicated that the complex is heat stable at the temperature of 430 ℃. The XRD patterns showed that the complex is a new crystal different from the two ligands' structures. SEM image indicates that the complex is in block shape and disperses well. Photoluminescence (PL) analysis indicates that the complex emits Eu3+ characteristic luminescence under ultraviolet excitation.
Liu Guixia1，Ren Huijuan2，Cui Zhenfeng2，Hong Guangyan3
(1.School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China;
2.Changchun Institute of Technology, Changchun 130021, China;
3.Key Laboratory of Rare Earth Chemistry and Physics, Chinese Academy of Sciences, Changchun 130022, China)
Abstract:Eu(Ⅲ)-Pyromellitic acid[PMA]-1,10-phenanthroline (phen) ternary luminescent complex was prepared in ethanol and water mixed solvent. The elemental analysis, inductively coupled plasma-atomic emission spectroscopy (ICP-AES) fourier-transform infrared spectroscopy (FT-IR) indicates that its chemical constitution is Eu4(PMA)3(phen)0.75·7H2O. TG-DTA curves indicated that the complex is heat stable at the temperature of 430 ℃. The XRD patterns showed that the complex is a new crystal different from the two ligands'' structures. SEM image indicates that the complex is in block shape and disperses well. Photoluminescence (PL) analysis indicates that the complex emits Eu3+ characteristic luminescence under ultraviolet excitation.
Key words:europium; pyromellitic acid; 1,10-phenanthroline; luminescence; complex; rare earths;
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