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Original Articles

Three Mn(II) complexes with 1,3-bis(4-pyridyl)propane and their supramolecular nets

, , , , , & show all
Pages 2500-2509 | Received 16 Feb 2012, Accepted 09 Apr 2012, Published online: 13 Jun 2012
 

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 13 are formed by hydrogen bonds. The fluorescence of the three complexes comes from the π*–π transition of the ligand.

Acknowledgments

We are grateful to the National Natural Science Foundation of China (21071101).

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