Syntheses, Crystal Structures, Thermal And Fluorescent Properties Of Two New Bearing Bi(Iii) Supramolecular Compounds
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY(2021)
Abstract
Two new bearing Bi(III) supramolecular compounds [Bi(pydcH)(3)(Bi(pydcH)(pydcH(2))(pydc)(Bi(pydcH)(pydcH(2))(pydc)] (1) and {[Bi(pydcH)(3)]center dot(H2O)(3)(Dmap)}(2) (2) have been successfully synthesized via hydrothermal reaction (pydcH(2) = 2,6-pyridine dicarboxylate, Dmap = 4-dimethylamiopyridine). They have been structurally determined by single-crystal X-ray analysis, and characterized by fluorescence analysis and thermogravimetric analysis (TG). Both compounds 1 and 2 are of the same triclinic system with different structures. The decomposition mechanisms of compounds 1 and 2 are discussed. Compared to 1, lots of small molecules were possibly removed from compound 2 below 250 degrees C. In addition, the photoluminescence properties were also investigated.
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Key words
Bi(III) supramolecular compounds, crystal structure, fluorescence, thermal stability
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