Manganese(II) complexes with V-shaped sulfonyldibenzoate: The 3D structures with interpenetrated threefold or tetra-nuclear manganese(II) units |
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| Authors: | Ning Li Lian Chen Feilong Jiang Maochun Hong |
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| Institution: | a State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
b Graduate School of Chinese Academy of Science, Beijing 100039, China |
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| Abstract: | Five MnII-sdba coordination polymers with mono-, di-, tri-, tetra-nuclear cores based on the V-shaped 4,4′-dicarboxybiphenyl sulfone (H2sdba) ligands: Mn(sdba)(phen)2(H2O)]n·3nH2O (1), Mn2(sdba)2(μ-H2O)(py)4]n (2), Mn3(sdba)2(Hsdba)2(2,2′-bipy)2]n (3), Mn4(sdba)4(4-mepy)2(H2O)4]n·2nH2O (4) and Mn4(sdba)4(bpp)4(μ-H2O)2]n·0.5nH2O (5) (phen = 1,10-phenanthroline, 2,2′-bipy = 2,2′-bipyridine, 4-mepy = 4-picoline, bpp = 1,3-bi(pyridine-4-yl)propane) were hydrothermally synthesized and structurally characterized. The M-O-C metal clusters in above complexes act as SBUs, and the V-shaped sdba ligands link the SBUs to generate the novel frameworks. In complexes 1 and 3 their 1D chains are linked into the 2D planes through various hydrogen bonding. Complex 2 displays the 3D structure with interpenetrated threefold, while complexes 4 and 5 both exhibit the 3D structures with the tetra-nuclear Mn4 units. The magnetic susceptibility studies in the 2-300 K range for these complexes reveal the existence of anti-ferromagnetic exchange interactions between the MnII ions. |
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| Keywords: | X-ray crystal structures V-shaped Sulfonyldibenzoate Manganese Magnetism |
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