| 基于二苯甲酰酒石酸构筑的钴（Ⅱ）、镍（Ⅱ）配合物的合成、结构、荧光及磁性质 | |
| Synthesis, Structures, Luminescence and Magnetic Properties of Co(Ⅱ) and Ni(Ⅱ) Coordination Compounds Based on Dibenzoyl-Tartaric Acid | |
| 摘要: 在室温条件下合成了2个配合物[Ni（DBTA）（DMF）（H2O）4]（1）和[Co（DBTA）（DMF）（H2O）4]（2）（D-H2DBTA=D-（+）-二苯甲酰酒石酸，DMF=N，N-二甲基甲酰胺），并通过元素分析、FT-IR光谱、X射线单晶及粉末衍射表征了2个配合物的结构。X射线单晶衍射结果表明，2个配合物同构，属于单斜晶系，P21空间群。配合物由配位键形成零维结构，再通过分子间氢键形成三维网状结构。荧光分析表明当激发波长为280 nm时，配合物1和2具有较强的荧光。尽管2个配合物同构，但表现出不同的磁性质：配合物1主要表现出Ni2+离子间弱的反铁磁相互作用，而配合物2则表现为Co2+离子的磁各向异性以及Co2+离子间强的反铁磁相互作用。 | |
| 关键词: 配合物 二苯甲酰酒石酸 晶体结构 荧光 磁性 | |
| 基金项目: 山西省1331工程重点创新研究团队、山西省自然科学基金（No.201901D111014）和山西省归国留学基金（No.2020-001）资助。 | |
| Abstract: Two coordination compounds[Ni(DBTA)(DMF)(H2O)4] (1) and[Co(DBTA)(DMF)(H2O)4] (2) (D-H2DBTA=(+)-2,3-dibenzoyl-D-tartaric acid, DMF=N,N-dimethylformamide) have been synthesized at room temperature, and characterized by elemental analyses (EA), FT-IR, X-ray single-crystal and powder diffraction analyses. The structural analysis shows that complexes 1 and 2 are isomorphic. They belong to the monoclinic system with P21 space group and display a zero-dimensional structure constructed from coordination bonds, which is further interlinked to form a three-dimensional network via hydrogen-bonding interactions. Fluorescence measurements indicate that 1 and 2 can exhibit strong fluorescence using 280 nm as the excitation wavelength. Though 1 and 2 are isomorphic, they displayed different magnetic properties. Complex 1 dominates weak antiferromagnetic couplings between Ni2+ cations, while complex 2 exhibits the magnetic anisotropy of the Co2+ center and antiferromagnetic interactions between the Co2+ cations. | |
| Keywords: coordination compounds dibenzoyl-tartaric acid crystal structure luminescence magnetism | |
| 投稿时间：2021-03-25 修订日期：2021-09-24 | |
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| 张雪,孙媛媛,冯思思,袁彩霞.基于二苯甲酰酒石酸构筑的钴（Ⅱ）、镍（Ⅱ）配合物的合成、结构、荧光及磁性质[J].无机化学学报,2021,37(12):2279-2288. | |
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