Three Mn(II) complexes with 1,3-bis(4-pyridyl)propane and their supramolecular nets |
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| Abstract: | Three complexes, [Mn(bpp)4(H2O)2](ClO4)2?·?1.5H2O (1), [Mn(bpp)3Br2]?·?2H2O (2), and [Mn(bpp)2(H2O)2](ClO4)?·?I?·?H2O?·?bpp (3) (bpp?=?1,3-bis(4-pyridyl)propane), were synthesized and structurally characterized by single-crystal X-ray diffraction. Complex 1 is mononuclear where M(II) is coordinated to a monodentate TT-bpp, three monodentate TG-bpp, and two water molecules. Complex 2 possesses a single-stranded helical chain formed from MnN4Br2 octahedra by a single TT-bpp, with pendant monodentate TG-bpp ligands. Complex 3 consists of a ribbon-type double-stranded chain formed from MnN4O2 octahedra by double TG-bpp ligands. 2-D supramolecular architectures of 1–3 are formed by hydrogen bonds. The fluorescence of the three complexes comes from the π*–π transition of the ligand. |
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| Keywords: | Manganese complex 1,3-Bis(4-pyridyl)propane Crystal structure Fluorescence |
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