Two new 2D organic–inorganic hybrids assembled by lanthanide-substituted polyoxotungstate dimers and copper–complex linkers |
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| Affiliation: | 1. School of Physics and Materials Engineering, Dalian Minzu University, Liaoning, Dalian 116600, China;2. MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China;1. MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China;2. College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China;1. MOE Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, Beijing 100081, China;2. Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China;3. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China |
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| Abstract: | Two new organic–inorganic hybrid copper–lanthanide heterometallic polyoxometalates (POMs), Cu(dap)2]3.5Cu(dap)2(H2O)]3La(α-SiW11O39)2]·5H2O (1) and HCu(dap)2(H2O)]Cu(dap)2]4Eu(α-PW11O39)2]·13H2O (2) (dap = 1,2-diaminopropane), have been made under hydrothermal conditions and characterized by elemental analyses, IR spectra, XRD, thermogravimetric (TG) analyses and X-ray single-crystal diffraction. They both display interesting 2D organic-inorganic hybrid POMs containing 3d-4f cations and organic dap ligands. To the best of knowledge, 1 represents the first 2D Cu–Ln heterometallic silicotungstate assembled by La(α-SiW11O39)2]13 ? dimers and Cu(dap)2]2 + linkers, while 2 is a new 2D Cu-Eu heterometallic Keggin-type phosphotungstate with dap ligands. Furthermore, the variable-temperature magnetic susceptibility of 2 has been investigated. |
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