Synthesis and photophysical properties of novel polymeric Eu(III) complex with bicoordination ligand |
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Authors: | Hualiang Huang Hailiang Zhang Yu Zhou |
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Institution: | Department of Chemistry, Xiangtan University, Hunan 411105, PR China |
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Abstract: | A novel complex of Eu(III) with bicoordination ligand: 4,4′-bis2-(2′-pyridyl) benzimidazol-yl]-biphenyl (Bmbp) has been synthesized. The structure of the ligand was characterized by 1H NMR, FT-IR and UV-vis; Eu(III) complex was characterized by FT-IR, UV-vis, elemental analysis, conductivity measurements and gel-permeation chromatography (GPC). The luminescence properties were investigated by UV-vis and fluorescence spectra. The experimental results show that the complex contain more than one Eu(III) ion, the emission at 614 nm from the 5D0→7F2 electronic dipole transition is large enhanced, and the complex is excellent energy transfer from ligand to Eu3+in the solid state. Thermal property measurement and analysis show that it has a good thermal stability. |
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Keywords: | Europium Photophysical properties 4 4&prime -Bis[2-(2&prime -pyridyl)benzimi-dazolyl] biphenyl |
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