吡嗪酮肟铁金属衍生物的合成、结构及磁性研究
Ferrum Derivatives of pzC(Me)NOH Ligand: Synthesis, Structure and Magnetic Study
DOI: 10.12677/MS.2019.95064, PDF,    科研立项经费支持
作者: 张宏刚, 杨 华, 李大成, 窦建民：聊城大学，化学化工学院，山东省化学储能与新型电池技术重点实验室，山东 聊城
关键词: 吡嗪肟；铁配合物；磁性研究；Pyrazinyloximato； Ferrum Complexes； Magnetic Study
摘要: 以吡嗪酮肟为配体合成了两个铁金属配合物：[Fe2(pyzaox)3(H2O)3]∙2(NO3)∙(OH)∙5(H2O) (1)，[Fe3(pyzaox)6]∙6(TfO)∙3(H3O)∙10(H2O)∙2(MeOH) (2)。配合物1是一个双核铁配合物，其中一个铁离子与三个吡嗪酮肟配体连接。配合物2是一个三核铁配合物，两端的铁离子分别与三个吡嗪酮肟配体连接。对配合物2进行了磁学性质的测试，测试结果表明：配合物2在1000 Oe外加直流磁场下表现出了频率依赖的实部(χ’)和虚部(χ’’)交流信号，这种低温下的慢磁弛豫现象证明了配合物2表现出单分子磁体行为。
Abstract: Two FeⅢ-complexes based on pzC(Me)NOH (Hpyzaox):[Fe2(pyzaox)3(H2O)3]∙2(NO3)∙(OH)∙5(H2O) (1), [Fe3(pyzaox)6]∙6(TfO)∙3(H3O)∙10(H2O)∙2(MeOH) (2) have been synthesized. The complex 1 contains two FeⅢ ions, and one of FeⅢ ions connects with three Hpyzaox ligands. The complex 2 contains three FeⅢ ions, and the two bipolar FeⅢ ions connect with three Hpyzaox ligands respectively. Analysis of the magnetic properties of complex 2 reveals that under 1000 Oe dc field the complex 2 shows significant frequency-dependent in-phase (χ’) and out-of phase (χ’’) ac signal. This slow magnetic relaxation phenomenon at low temperature reveals that the complex 2 exhibits single molecular magnetic behavior.
文章引用：张宏刚, 杨华, 李大成, 窦建民. 吡嗪酮肟铁金属衍生物的合成、结构及磁性研究[J]. 材料科学, 2019, 9(5): 504-510. https://doi.org/10.12677/MS.2019.95064

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