Synthesis,structure and magnetic property of the first 2-D organic–inorganic hybrid sandwich-type polyoxotungstate containing O-donor organic ligands |
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| Authors: | Junwei Zhao Jili Li Pengtao Ma Jingping Wang Jingyang Niu |
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| Affiliation: | Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Hennan University, Kaifeng 475001, PR China |
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| Abstract: | An unprecedented 2-D organic–inorganic hybrid sandwich-type polyoxotungstate containing O-donor organic ligands DMAH]4{Mn(DMF)4]2Mn4(DMF)2(α-B-HPW9O34)2]} (1) (DMA = dimethylamine, DMF = N,N-dimethylformamide) has been solvothermally synthesized and characterized by IR, UV spectra and X-ray single-crystal diffraction. The 2-D organic–inorganic hybrid network of 1 is built by tetra-MnII substituted sandwich-type polyoxotungstates Mn4(DMF)2(α-B-HPW9O34)2]8? and Mn(DMF)4]2+ cation bridges, which displays the common 2-D (4,4) topological net. It should be noted that the major difference between Mn4(DMF)2(α-B-HPW9O34)2]8? in 1 and the reported Mn4(H2O)2(α-B-PW9O34)2]10? is that two DMF ligands substitute two H2O ligands on the Mn4O16 unit located in the sandwich belt. Magnetic susceptibility measurement indicates the occurrence of antiferromagnetic coupling interaction within MnII ions. |
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