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Two new hydrogen bond-supported supramolecular compounds assembly from tungsten-vanadium polyoxoanions and copper complex fragments |
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| Authors: | Ji-Wen Cui Yan Chen Hai-Hui Yu Jia-Ning Xu Wei-Jie Duan |
| Affiliation: | a College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130021, PR China b College of Chemistry and Pharmacy, Jiamusi University, Jiamusi 154000, PR China c College of Chemical Engineering, NorthEast Dianli University, Jiamusi 132000, PR China |
| Abstract: | Two new supramolecular compounds based on tungsten-vanadium polyoxoanions formulated as [Cu(2,2′-bipy)3]2H14[PW2.2V9.8O40(VO)2[Cu(2,2′-bipy)2H2O]2][PW2.2V9.8O40(VO)2]·10H2O (1) and [Cu4(2,2′-bipy)4(H2O)2(PO4)2]H6.5[PW8.4V3.6O40]·2H2O (2) (2,2′-bipy=2,2′-bipyridine) have been synthesized hydrothermally and characterized by IR, TG, XPS and X-ray diffraction analyses. Crystal structure analyses reveal that compounds 1 and 2 exhibit novel 2D supramolecular layer structures constructed from tungsten-vanadium polyoxoanions and different types of secondary building units (SBUs), respectively, the different SBUs are formed by [Cu(2,2′-bipy)2H2O]2+ and [Cu(2,2′-bipy)3]2+ cations in compound 1 and [Cu4(2,2′-bipy)4(H2O)2(PO4)2]2+ cations in 2, respectively. Study of magnetic properties indicated the presence of antiferromagnetic behaviors for both compound 1 and 2. |
| Keywords: | Tungsten-vanadium polyoxoanion Hydrothermal synthesis Bi-supported keggin Tetranuclear complex cation clusters Supramolecular compounds |
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