A new organic-inorganic hybrid tetrameric polyoxometalate assembled by monovacant Dawson [α2-P2W17O61]10 ? and trivalent cerium cations |
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| Affiliation: | 1. Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology, Xingyi Normal University for Nationalities, Xingyi, Guizhou 562400, PR China;2. Jilin Institute of Chemical Technology, Jilin City, Jilin 132022, PR China;3. Department of Chemical Engineering, Huaihai Institute of Technology, Jiangsu, Lianyungang 222000, PR China;2. Shippensburg University, Shippensburg, PA, United States;1. Laboratory of Research, Catalysis and Materials for the Environment and Processes, LRCMEP (LR19ES08), Faculty of Sciences of Gabes, University Campus, 6072 Gabes, Tunisia;2. Materials Sciences Institute of Barcelona (ICMAB-CSIC) Campus UAB, 08193 Bellaterra, Spain;3. Laboratory of Quantum and Statistical Physics, Faculty of Sciences, University of Monastir, Monastir, 5079, Tunisia;4. Laboratory of Physico-Chemistry of Materials, Faculty of Sciences of Monastir, University of Monastir, Monastir, Tunisia |
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| Abstract: | A novel octa-nuclear cerium(III)-containing organic-inorganic hybrid polyoxometalate N(CH3)4]8H16{Ce(η1-C6H5NO2)2(H2O)6Ce(H2O)3(α2-P2W17O61)]}{Ce(η2-C6H5NO2)2(H2O)5Ce(H2O)(α2-P2W17O61)]}]2·90H2O (C6H5NO2 = isonicotinic acid) (1) was obtained, which had been hydrothermally synthesized and characterized by IR spectrum, thermogravimetric analysis (TGA), and X-ray single-crystal diffraction. Structural analysis indicated at 1 is composed of four lacunary Dawson-type units α2-P2W17O61]10 ? joined together by eight cerium cations forming an uncommon zigzag tetrameric structure with eight isonicotinic acids as the organic pendants coordinating to the cerium cations. Magnetic property studies indicate that obvious antiferromagnetic interactions exist in eight Ce3 + cations. |
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