A manganese(II) dichloro-bridged one-dimensional polymer: Structural, fluorescence and low-temperature magnetic study

One-dimensional organic/inorganic composite coordination polymer has been synthesised by the reaction of manganese(II) chloride with the chelating bidentate ligand, 1,10-phenanthroline (1,10-phen). X-ray single crystal analysis shows a doubly chloride bridged 1-D polymer, [Mn(μ-Cl)2(phen)]n (1), where manganese(II) ions possess octahedral environment. The complex is characterised by elemental analysis, different spectroscopic, electrochemical and low temperature magnetic susceptibility measurements. 1 exhibits strong fluorescence emission band at 410 nm and can serve as potential photoactive material as indicated from the characteristic fluorescence properties. Magnetic susceptibility measurements reveal a weak ferromagnetic interaction between the two high-spin Mn(II) ions of J = 0.017 cm−1.

One-dimensional dichloro-bridged coordination polymer [Mn(μ-Cl)2(phen)]n (1), has been synthesised at room temperature. It shows emission peak at 410 nm, which is altogether different from that of 1,10-phen. Complex 1 exhibits ferromagnetic interactions with J = 0.017 cm−1.Figure optionsDownload as PowerPoint slide