| 4-氯苯氧乙酸和1，10-邻菲啰呤构筑的双核铽配合物的晶体结构，荧光和生物活性 |
| A Terbium Complex Constructed from4-Chlorophenoxyacetate and1, 10-Phenanthroline with Luminescence and Biological Activity Studies |
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| 摘要: 水热条件下采用Tb(NO3)3·6(H2O)，4-氯苯氧乙酸和1，10-邻菲啰呤作为反应物合成出1个双核铽配合物[Tb2(4-Hcpoa)5(phen)2(NO3)](1)(4-Hcpoa=4-氯苯氧乙酸，phen=1，10-邻菲啰呤)，并分别用元素分析、红外光谱、差热分析、X-射线粉末衍射和X-射线单晶衍射等表征了该结构。晶体结构分析结果表明：2个双齿和2个三齿4-氯苯氧乙酸配体将2个铽金属离子连接成二聚体结构。荧光分析表明常温固态下配合物1发射绿色荧光，且在544nm处的荧光寿命为0.920ms。以除草剂精喹禾灵为对照品，研究了配体4-氯苯氧乙酸及其配合物1对甘蓝型油菜和钝芒稗的抑制作用。 |
| 关键词: 铽配合物 水热合成 晶体结构 荧光性质 生物活性 |
| 基金项目: 国家自然科学基金青年项目(81202461)中国博士后科学基金面上项目(2013M531906)资助。 |
| Abstract: Adinuclear terbium(Ⅲ) complex, [Tb2(4-Hcpoa)5(phen)2(NO3)] (1)(1, 4-Hcpoa=4-chlorophenoxyacetate, phen=1, 10-phenanthroline), has been hydrothermally synthesized and structurally characterized by elemental analysis, IRspectroscopy, TGA, powder X-ray diffraction and single crystal X-ray diffraction. Structural determination reveals that the Tb3+ ions are bridged by two bidentate and two terdentate carboxylate groups to give a centrosymmetric dimer with Tb…Tb separations of 0.3970(2) nm. Solid-state 1 emits the intensely green photoluminescence with fluorescence lifetime of 0.920 ms (544 nm) at room temperature. The 4-Hcpoa ligand and complex 1 have been screened for their phytogrowth-inhibitory activities against Brassica napus L. and Echinochloa crusgalli L., and the results are compared with the activity of quizalofop-p-ethyl. CCDC: 957432. |
| Keywords: terbium(Ⅲ) complex hydrothermal synthesis crystal structure luminescence biological activity |
| 投稿时间：2013-09-02 修订日期：2014-01-23 |
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| 徐俊,马德运,覃亮.4-氯苯氧乙酸和1，10-邻菲啰呤构筑的双核铽配合物的晶体结构，荧光和生物活性[J].无机化学学报,2014,30(6):1395-1402. |
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