Hydrothermal syntheses and structure characteristics of two new supramolecular compounds assembled from octamolybdates and bpy units (bpy = 4,4′-bipyridine) |
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Authors: | Hai-Hui Yu Xiao-Bing Cui Jing Lu Ying-Hua Sun Wei-Jie Duan Ji-Wen Cui Zhi-Hui Yi Ji-Qing Xu Tie-Gang Wang |
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Institution: | aCollege of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Department of Chemistry, Jilin University, Changchun 130023, China |
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Abstract: | Two new compounds, (Hbpy)3(bpy)2K(Mo8O26)]·2H2O (1) and H3(bpy)5K(Mo8O26)]·H2O(2) (bpy = 4,4′-bipyridine) have been synthesized under hydrothermal condition by using nearly the same starting materials, and characterized by elemental analyses, IR, TGA, XPS and single crystal X-ray diffractions. The crystal structure analyses reveal that the two compounds possess unusual networks constructed from octamolybdates, potassium ions and organic groups. Both 1 and 2 consist of an identical inorganic chain , and they have analogous structures to each other with slightly different packing modes of the organic groups and water molecules and exhibit unusual three-dimensional (3D) supramolecular networks through extensive multi-point C–HO and N–HO hydrogen-bonding interactions. |
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Keywords: | Hydrothermal syntheses Crystal structure Hybrid material Octamolybdate |
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