一维链状锰配合物的合成、结构及磁性研究(英文) |
Synthesis, Crystal Structure and Magnetic Properties of a Manganese Complex with One-dimensional Chain Structure |
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摘要: 合成了邻硝基苯磺酰化丙氨酸配体2-NBS-AlaH (1)(2-NBS-AlaH=邻硝基苯磺酰化丙氨酸)及其锰的配合物[Mn(4,4′-bipy)(H2O)4]2[(4,4′-bipy)2(H2O)3(2-NBS-Ala)4] (2)。通过X-射线单晶衍射测定了其结构:配体通过氢键形成了一维链状结构;配合物2中,4,4′-bipy把锰离子连成了一维链状结构。磁性研究表明,配合物由于分子间的自旋耦合呈现出弱的铁磁性。 |
关键词: N-邻硝基苯磺酰化丙氨酸 晶体结构 锰配合物 磁性 |
基金项目: |
Abstract: A ligand 2-NBS-AlaH (1) (2-NBS-AlaH=N-2-Nitrobenzenesulfonyl-L-α-alanine acid ) and its 1D manganese(Ⅱ) complex with 4,4′-bipy as bridging ligand, of formula [Mn(4,4′-bipy)(H2O)4]2[(4,4′-bipy)2(H2O)3(2-NBS-Ala)4]n (2) have been synthesized and characterized. Single crystal structure shows that the ligand is linked via hydrogen bonds into a 1D chain structure and the structure of the complex 2 reveals that the coordination environment around the Mn(Ⅱ) ion can be described as a slightly distorted octahedron. 4,4′-bipy ligands act as a μ2-bridge and join the Mn atoms into an infinite 1D chain structure. The magnetic susceptibility measurements (2~300 K) agree with a weak ferromagnetic interaction between neighboring Mn ions in the chain. CCDC: 601686, 1; 601455, 2. |
Keywords: N-2-Nitrobenzenesulfonyl-L-α-alanine crystal structure manganese(Ⅱ) complex magnetic property |
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霍现宽,马录芳,王利亚,樊耀亭.一维链状锰配合物的合成、结构及磁性研究(英文)[J].无机化学学报,2007,23(3):401-406. |
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