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Synthesis, crystal structure and anti-ferromagnetic behavior of a two-dimensional manganese(II) complex with 3,6-dinitro-1,2,4,5,-benzenetetracarboxylate anion as bridging ligand

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A two-dimensional complex {[Mn2(DBT)(DMF)4]·2H2O}n (DBT?=?3,6-dinitro-1,2,4,5- benzenetetracarboxylate anion; DMF?=?N,N-dimethylformamide) has been synthesized and its crystal structure determined by X-ray crystallography. The complex crystallizes in a triclinic system and the space group is P 1 with a ?=?9.012(5), b ?=?9.196(6), c ?=?9.910(6)?Å. In the complex there exist two kinds of coordination environments for Mn(II) ions; each DBT coordinates four Mn(II) ions by its four carboxylate groups and in this way a two-dimensional sheet was constructed. The variable-temperature magnetic susceptibility of the complex was measured in the 5–300?K range and the magnetic data indicate that the magnetic interaction between the bridged manganese(II) ions displays an anti-ferromagnetic coupling.
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Keywords: Crystal structure; Magnetism; Manganese(II) complex; Synthesis

Document Type: Research Article

Affiliations: Department of Chemistry, Shandong Normal University, Jinan 250014, P.R. China

Publication date: July 20, 2005

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