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Hydrothermal synthesis and crystal structural characterization of two new modified polyoxometalates constructed of positive and negative metal–oxo cluster ions |
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| Authors: | Ying-Hua Sun Ji-Qing Xu Ling Ye Xiao-Bing Cui Yong Li Hai-Hui Yu Guang-Hua Li Guang-Di Yang Yan Chen |
| Affiliation: | aCollege of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130023, China bDepartment of Chemistry, Baicheng Normal College, Baicheng Jilin 137000, China cKey Laboratory of Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun, 130023 Jilin, China |
| Abstract: | Two new interesting polyoxometalate derivatives 1 and 2 constructed of modified metal–oxo cluster ions carrying positive and negative changes, respectively, was hydrothermally prepared and structurally characterized by IR, ESR, XPS, elemental analysis and X-ray crystallography. The result of structure determination shows that compound 1 and 2 are isostructural and both contain polyoxocation and polyoxoanion, and both cation and anion are built on mixed Mo–V tetra-capped pseudo-Keggin units with P centre, [Mo8V8O40(PO4)]n−, bonded to four or two [Ni(2,2′-bipy)2H2O]2+ complexes, respectively, via terminal oxygen of the capping V atoms. Magnetism measurement indicates that there exists antiferromagnetic interaction in complex 1 and 2. |
| Keywords: | Hydrothermal synthesis Polyoxometalate Transition metal Magnetism |
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