Study on fluorescence properties of rare earth complexes influenced by steric effect |
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| Authors: | YUAN Wei CUI Yumin SHI Ruijuan TAO Dongliang WANG Yongzhong ZHANG Wenbao CHEN Jitang SUN Lin LIU Shaoxuan XU Yizhuang |
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| Affiliation: | YUAN Wei 1,CUI Yumin 1,2,SHI Ruijuan 1,TAO Dongliang 1,WANG Yongzhong 1,ZHANG Wenbao 1,CHEN Jitang 1,SUN Lin 1,LIU Shaoxuan,XU Yizhuang 3(1.College of Chemistry and Chemical Industry,Fuyang Normal College,Fuyang 236041,China,2.Anhui Provincial Key Laboratory for Degradation and Monitoring of Pollution of the Environment,3.College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China) |
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| Abstract: | The rare earth complexes Tb(o-BrBA)3,Tb(m-BrBA)3 and Tb(p-BrBA)3 were synthesized using o-,m-,p-bromo benzoic acids(2-bromo benzoic acid,3-bromo benzoic acid and 4-bromo benzoic acid) as ligand,respectively.The UV spectra showed that the absorption ability of Tb(m-BrBA)3 was the strongest.However,the fluorescent intensity of Tb(o-BrBA)3 was the weakest.The effect of the molecular structure,the energy level of Tb3+ and energy transfer efficiency from ligands to Tb3+ were discussed to explain the experimental... |
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| Keywords: | terbium complexes bromo benzoic acid steric effect fluorescent spectrum rare earths |
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