Abstract
Two coordination polymers {[Co3L3(Me2NH)2]·(Me2NH)}n(1) and [CuL(bpy)]n(2)(L=2,2′-biphenyl dicarboxylate ion, bpy=4,4′-bipyridine) were obtained and characterized. Compound 1 was synthesised via solvothermal method, with the L ligands adopting syn-syn-μ2-η1:η1- and μ2-η2-coordination modes and Co(II) centers being linked to form a 1D coordination chain with trinuclear Co3 cluster as sub-units. Compound 2 was synthesized at room temperature, with the L ligand chelating the Cu(II) centers to form a 1D chain, which was further linked by the auxiliary 4,4′-bpy ligand to form a 3D coordination network. The results of variable temperature susceptibility studies reveal that there were ferromagnetic and antiferromagnetic interactions between the paramagnetic metal centers in compounds 1 and 2, respectively.
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