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Solvothermal syntheses, characterizations and properties of two new Ni~(II)-PMIDA phosphonates

机译:两种新型Ni〜(II)-PMIDA膦酸酯的溶剂热合成,表征和性质

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摘要

Two new nickel(II) phosphonates (H4PMIDA = N-(phosphonomethyl)iminodiacetic acid, H4L), one-dimensional zigzag chain (NH4)2[Ni(PMIDA)(H2O)] (1) and tetramer (H3O)8[Ni4O2(HPMIDA)4(H2O)2] (2), have been solvothermally synthesized and characterized by elemental analyses, IR, TGA and X-ray single-crystal diffraction, and their magnetic and fluorescent properties are also reported. Compound 1 is the first chain phosphonate linked by carboxyl group in anti-anti mode based on Ni(II) and H4PMIDA ligand, and compound 2 with tetranuclear units is the first example of showing the spin-canting antiferromagnetic coupling between Ni(II) centers.
机译:两个新的膦酸镍(II)(H4PMIDA = N-(膦酰基甲基)亚氨基二乙酸,H4L),一维之字形链(NH4)2 [Ni(PMIDA)(H2O)](1)和四聚体(H3O)8 [Ni4O2 (HPMIDA)4(H2O)2](2)已被溶剂热合成并通过元素分析,IR,TGA和X射线单晶衍射表征,并且还报道了它们的磁性和荧光性质。化合物1是基于Ni(II)和H4PMIDA配体的反链方式通过羧基连接的第一链膦酸酯,具有四核单元的化合物2是显示Ni(II)中心之间自旋消除反铁磁偶联的第一个例子。

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