一种新型稀土铕配合物的制备及荧光性能研究
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摘要
本文以2,6-二(4-乙氧基苯甲酰基)吡啶(L)和1,10-邻菲罗琳为配体,设计并制备了新型的稀土铕离子三元配合物EuL(Phen)2(Phen=1,10-邻菲罗啉),通过核磁共振氢谱和红外光谱对结构进行了表征。研究表明,配合物具有很好的溶剂化效应,溶液体系的荧光强度与溶剂的极性有关,极性越小体系荧光强度越大;固体配合物在593nm和620nm处有较强的Eu~(3+)特征发射峰,以620nm处的荧光强度最强,2处峰强度比值为4.57,配合物单色性较好,是一种具有很好的应用前景的红光材料。
A new type of three ternary Eu(Ⅲ)complex-EuL(Phen)2(Phen=1,10-phenanthroline)was prepared by 2,6-bis(4-ethoxybenzoyl)pyridine and 1,10-phenanthroline as ligand.The structure was characterized by 1 H-NMR and FT-IR.The fluorescence intensity of complex in different polar solvents and the fluorescence properties of complex were studied.The results showed that the fluorescence intensity of solution system was related to the polarity of the solvent,the lower polarity resulted in a higher fluorescence intensity.The solid complex had strong Eu3+emission peaks at 593 nm and 620nm,and the fluorescence intensity of 620 nm was the best,the ratio of peak intensity was 4.57.And the complex had good monochromaticity,which can be used as eminent red light material.
A new type of three ternary Eu(Ⅲ)complex-EuL(Phen)2(Phen=1,10-phenanthroline)was prepared by 2,6-bis(4-ethoxybenzoyl)pyridine and 1,10-phenanthroline as ligand.The structure was characterized by 1 H-NMR and FT-IR.The fluorescence intensity of complex in different polar solvents and the fluorescence properties of complex were studied.The results showed that the fluorescence intensity of solution system was related to the polarity of the solvent,the lower polarity resulted in a higher fluorescence intensity.The solid complex had strong Eu3+emission peaks at 593 nm and 620nm,and the fluorescence intensity of 620 nm was the best,the ratio of peak intensity was 4.57.And the complex had good monochromaticity,which can be used as eminent red light material.
引文
[1]孔晓朵,孙怡.镓-2,6-吡啶二甲酸与α-吡啶甲酸或1,10-邻菲啰啉配合物的合成、表征及抑菌活性[J].化学研究与应用,2009,21(9):1274-1278.
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[8]杨青,赵强,魏琦峰,等.吡啶-2,6-二甲酰胺衍生物及其Tb(Ⅲ)和Eu(Ⅲ)配合物的合成与荧光性质[J].中南大学学报(自然科学版),2007,38(4):696-700.
[9]Gu G,Tang R,Zheng Y,et al.Synthesis,characterization and fluorescence properties of novel pyridine dicarboxylic acid derivatives and corresponding Tb(Ⅲ)complexes[J].Spectrochimica Acta Part A:Molecular and Biomolecular Spectroscopy,2008,71(1):209-214.
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[11]Huhtinen P,KivelM,Kuronen O,et al.Synthesis,characterization,and application of Eu(Ⅲ),Tb(Ⅲ),Sm(Ⅲ),and Dy(Ⅲ)lanthanide chelate nanoparticle labels[J].Analytical Chemistry,2005,77(8):2643-2648.
[12]银秀菊.吡啶-2,6-二甲酸配合物的研究进展[J].河池师专学报(自然科学版),2002,22(2):12-14.
[13]朱龙观,谢学鹏,俞庆森.镧系邻菲罗啉四元混合阴离子配合物的合成和晶体结构[J].中国稀土学报,1998,16(4):293-297.
[14]李沅英,龚孟濂,杨燕生,等.铕(Ⅲ)-β-二酮-碱三元配合物的合成及其光谱研究[J].无机化学学报,1990,6(3):249.
[15]姚允斌,解涛,高英敏.物理化学手册[M].上海:上海科学技术出版社,1985,224-227.
[16]Mcrae E G.Theory of solvent effects on molecular electronic spectra.Frequency shifts[J].The Journal of Physical Chemistry,1957,61(5):562-572.
[2]Crans D C,Smee J J,Gaidamauskas E,et al.The chemistry and biochemistry of vanadium and the biological activities exerted by vanadium compounds[J].Chemical Reviews,2004,104(2):849-902.
[3]Hanson J C,Camerman N,Camerman A.Structure of a copperisoniazid complex[J].Journal of Medicinal Chemistry,1981,24(11):1369-1371.
[4]Lamture J B,Wensel T G.Intensely luminescent immunoreactive conjugates of proteins and dipicolinate-based polymeric Tb(Ⅲ)chelates[J].Bioconjugate Chemistry,1995,6(1):88-92.
[5]Jolanta S K,Elzbieta G K,Dobosz A,et al.Pyridine-2,6-dihydroxamic acid,apowerful dihydroxamate ligand for Ni 2+and Cu2+ions[J].J Chem Soc Dalton Trans,2002(24):4639-4643.
[6]Groves J T,Kady I O.Sequence-specific cleavage of singlestranded DNA by polynucleotide-bound metal complexes[J].Inorganic Chemistry,1993,32(18):3868-3877.
[7]Kady I O,Groves J T.Sequence-specific cleavage of DNA by oligonucleotide-bound metal complexes[J].Inorg Chem,1993,32(18):3868-3872.
[8]杨青,赵强,魏琦峰,等.吡啶-2,6-二甲酰胺衍生物及其Tb(Ⅲ)和Eu(Ⅲ)配合物的合成与荧光性质[J].中南大学学报(自然科学版),2007,38(4):696-700.
[9]Gu G,Tang R,Zheng Y,et al.Synthesis,characterization and fluorescence properties of novel pyridine dicarboxylic acid derivatives and corresponding Tb(Ⅲ)complexes[J].Spectrochimica Acta Part A:Molecular and Biomolecular Spectroscopy,2008,71(1):209-214.
[10]尹显洪,谭民裕.吡啶-2,6-二甲酸类配体稀土配合物的荧光性能[J].中国稀土学报,2001,19(6):555-559.
[11]Huhtinen P,KivelM,Kuronen O,et al.Synthesis,characterization,and application of Eu(Ⅲ),Tb(Ⅲ),Sm(Ⅲ),and Dy(Ⅲ)lanthanide chelate nanoparticle labels[J].Analytical Chemistry,2005,77(8):2643-2648.
[12]银秀菊.吡啶-2,6-二甲酸配合物的研究进展[J].河池师专学报(自然科学版),2002,22(2):12-14.
[13]朱龙观,谢学鹏,俞庆森.镧系邻菲罗啉四元混合阴离子配合物的合成和晶体结构[J].中国稀土学报,1998,16(4):293-297.
[14]李沅英,龚孟濂,杨燕生,等.铕(Ⅲ)-β-二酮-碱三元配合物的合成及其光谱研究[J].无机化学学报,1990,6(3):249.
[15]姚允斌,解涛,高英敏.物理化学手册[M].上海:上海科学技术出版社,1985,224-227.
[16]Mcrae E G.Theory of solvent effects on molecular electronic spectra.Frequency shifts[J].The Journal of Physical Chemistry,1957,61(5):562-572.