Syntheses,Structures and Magnetic Properties of Two Coordination Polymers Based on 2, 2-Biphenyldicarboxylate Ligand |
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| Authors: | ZHANG Qingfen ZHOU Zhongyuan WANG Xuan LU Jing |
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| Affiliation: | Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China |
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| 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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| Keywords: | Coordination polymer Crystal structure Magnetic property |
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