| 三维混配型三核镉(Ⅱ)配合物的合成及荧光性质(英文) |
| 3D Framework and Intense Photoluminescence of a Novel Trinuclear Cadmium(Ⅱ) Complex with Mixed Ligands |
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| 摘要: 水热合成法合成了新颖的三核超分子配合物[Cd3(PDA)3(2，2′-bipy)3(H2O)2]·2H2O (1)(H2PDA=pyridine-2,6-dicarboxylic acid)，并进行了元素分析、红外、热重、荧光及单晶衍射测试。该化合物属单斜晶系，P21/n空间群，晶胞参数分别为：a=2.122 81(14) nm，b=1.006 09(7) nm，c=2.830 64(19) nm，β=108.937 0(10)°。中心原子配位数为7，羧基以双齿形式将Cd1、Cd2、Cd3桥联组成三核配合物。分子间氢键与π-π堆积构筑成三维超分子结构。荧光分析表明该配合物在室温下发出强烈的蓝色荧光，具有潜在的应用价值。 |
| 关键词: 镉配合物 π-π堆积 三维结构 荧光 |
| 基金项目: |
| Abstract: A novel trinuclear cadmium(Ⅱ) supramolecular complex [Cd3(PDA)3(2,2′-bipy)3(H2O)2]·2H2O (1) (H2PDA=pyridine-2,6-dicarboxylic acid) has been prepared under hydrothermal condition and characterized by elemental analysis, IR, TG, fluorescence spectrum and single-crystal X-ray diffraction. The complex crystallizes in monoclinic system, space group P21/n with a=2.122 81(14) nm, b=1.006 09(7) nm, c=2.830 64(19) nm, β=108.937 0(10)°. The structure of the complex consists of trinuclear units with all metal centers being seven-coordinated. Cd1, Cd2 and Cd3 atoms are bridged by three carboxylate groups in dimonodentate fashion to give a trinuclear molecular building block [Cd3N9(CO2R)6]. Intermolecular hydrogen-bond interactions and face-to-face π-π stacking interactions lead the complex to a 3D supramolecular architecture. Fluorescent analyses show that the complex exhibits intense blue photoluminescence at room temperature and may be potential candidate for photoactive material. CCDC: 712746. |
| Keywords: cadmium complex π-π stacking interactions 3D structure photoluminescence |
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| 王 娟,苏进雄,唐 霞,王应席,程时远.三维混配型三核镉(Ⅱ)配合物的合成及荧光性质(英文)[J].无机化学学报,2011,27(5):957-962. |
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