Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Synthesis, structure and luminescence property of the three ternary and quaternary europium complexes | |
其他题名 | 论文其他题名 |
Li X.; Jin L. P.; Zheng X. J.; Lu S. Z.; Zhang J. H. | |
2002 | |
发表期刊 | Journal of Molecular Structure
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ISSN | 0022-2860 |
卷号 | 607期号:1页码:59-67 |
摘要 | Three binuclear europium complexes containing bidentate and tridentate bridging carboxylates with diimines, namely [Eu(m-MOBA)(2)NO(3)phen](2), [Eu(2,3-DMOBA)(2)NO(3)Phen](2) and [Eu(2,3-DMOBA)(3)bpy](2) (in-MOBA = 3-methoxybenzoate, 2,3-DMOBA = 2,3-dimethoxy-benzoate, phen = 1,10-phenanthroline, bpy = 2,2'-bipyridine), have been synthesized and characterized by X-ray diffraction. The two europium(III) ions in each dimer are bridged by the four carboxylato groups in which two of them are the bidentate bridging mode, and the other two the tridentate bridging mode. The crystallographic data and combination bands of infrared spectra of the [Eu(m-MOBA)(2)NO(3)phen](2) and the [Eu(2,3-DMOBA)(2)NO(3)phen](2) complexes show that the nitrato group is bidentate, and thus each europium(III) ion in the complexes is coordinated with seven oxygen atoms and two nitrogen atoms from phen, leading to a dimeric structure with coordination number 9. Excitation and emission spectra of the europium complexes were observed at 77 K. The D-5(u) --> F-7(J) (J = 0-4) luminescence spectra show that the europium(III) ion site in the crystals of the three europium complexes has C, symmetry. The slightly different chemical environments of the europium(III) ions in the [Eu(2,3-DMOBA)(3)bpy](2) complex is confirmed by its emission spectra. (C) 2002 Elsevier Science B.V. All rights reserved. |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/25187 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Li X.,Jin L. P.,Zheng X. J.,et al. Synthesis, structure and luminescence property of the three ternary and quaternary europium complexes[J]. Journal of Molecular Structure,2002,607(1):59-67. |
APA | Li X.,Jin L. P.,Zheng X. J.,Lu S. Z.,&Zhang J. H..(2002).Synthesis, structure and luminescence property of the three ternary and quaternary europium complexes.Journal of Molecular Structure,607(1),59-67. |
MLA | Li X.,et al."Synthesis, structure and luminescence property of the three ternary and quaternary europium complexes".Journal of Molecular Structure 607.1(2002):59-67. |
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