| 配合物[Eu(4-MOBA)3(terpy)(H2O)]2的合成、表征、热分解机理及性质 |
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| 引用本文： | 霍建霞,宋素伟,靳成伟,任宁,耿丽娜,张建军.配合物[Eu(4-MOBA)3(terpy)(H2O)]2的合成、表征、热分解机理及性质[J].物理化学学报,2016,32(4):901-906. |
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| 作者姓名： | 霍建霞 宋素伟 靳成伟 任宁 耿丽娜 张建军 |
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| 作者单位： | 1 河北师范大学分析测试中心, 石家庄 0500242 河北师范大学化学与材料科学学院, 石家庄 0500243 邯郸学院化学化工与材料学院, 河北邯郸 0560054 中石油京唐液化天然气有限公司, 河北唐山 063210 |
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| 基金项目： | the National Natural Science Foundation of China(31201305, 21473049);Natural Science Foundation of Hebei Province, China(B2016205207) |
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| 摘 要： | 合成了一个新的配合物Eu(4-MOBA)3(terpy)(H2O)]2 (4-MOBA:4-甲氧基苯甲酸根, terpy:2, 2':6', 2"-三联吡啶)。采用傅里叶变换红外(FTIR)光谱、元素分析和X射线粉末衍射(XRD)技术对标题配合物进行了表征,用X射线单晶衍射仪测定了配合物的晶体结构,在配合物中每个Eu3+离子与一个三联吡啶分子、一个水分子和三个羧酸分子结合,配位数为9,羧酸基团的配位模式包含三种:双齿螯合,桥连双齿,单齿。根据热重-差示扫描量热/傅里叶变换红外(TG-DSC/FTIR)联用技术,研究了配合物的热分解机理。配合物的发射光谱显示出Eu3+离子的特征荧光发射,表明三联吡啶和4-甲氧基苯甲酸在该体系中可作为敏化集团。另外,文中还讨论了配合物对白色念珠菌和大肠杆菌的抑菌活性。
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| 关 键 词： | 镧系配合物 晶体结构 热分解机理 荧光 2 2':6' 2"-三联吡啶 抑菌活性 |
| 收稿时间： | 2015-12-29 |
Synthesis,Characterization, Thermal Decomposition Mechanism and Properties of the [Eu(4-MOBA)3(terpy)(H2O)]2 Complex |
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| Jian-Xia HUO,Su-Wei SONG,Cheng-Wei JIN,Ning REN,Li-Na GENG,Jian-Jun ZHANG.Synthesis,Characterization, Thermal Decomposition Mechanism and Properties of the [Eu(4-MOBA)3(terpy)(H2O)]2 Complex[J].Acta Physico-Chimica Sinica,2016,32(4):901-906. |
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| Authors: | Jian-Xia HUO Su-Wei SONG Cheng-Wei JIN Ning REN Li-Na GENG Jian-Jun ZHANG |
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| Institution: | 1. Testing and Analysis Center, Hebei Normal University, Shijiazhuang 050024, P. R. China;2. College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang 050024, P. R. China;3. College of Chemical Engineering & Material, Handan University, Handan 056005, Hebei Province, P. R. China;4. Petro China Jingtang LNG Co., Ltd., Tangshan 063210, Hebei Province, P. R. China |
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| Abstract: | A new complex Eu(4-MOBA)3(terpy)(H2O)]2 (4-MOBA: 4-methoxybenzoate, terpy: 2, 2' :6', 2"-terpyridine) was synthesized. The complex was characterized using Fourier transform infrared (FTIR) spectroscopy, elemental analysis, and powder X-ray diffraction (XRD). The structure of the complex was determined using single-crystal XRD. In the complex, each Eu3+ ion is nine coordinated to one terpy molecule, one water molecule and three carboxylate groups. The carboxylate groups are bonded to the Eu3+ ion in three modes: bidentate, bridging bidentate, and monodentate. Based on thermogravimetry-differential scanning calorimetry/Fourier transform infrared (TG-DSC/FTIR) measurements, we determined the thermal decomposition mechanism. The emission spectra of the complex exhibited characteristic luminescence, suggesting that terpy and 4-methoxybenzoic acid can act as sensitizing chromophores in this system. Also, bacteriostatic activities for the complex to Candida albicans and Escherichia coli are discussed. |
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| Keywords: | Lanthanide complex Crystal structure Thermal decomposition mechanism Luminescence 2 2':6' 2"-Terpyridine Antimicrobial activity |
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