4.7 Article

Structure modulation of manganese coordination polymers consisting of 1,4-naphthalene dicarboxylate and 1,10-phenanthroline

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DALTON TRANSACTIONS
卷 43, 期 22, 页码 8508-8514

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ROYAL SOC CHEMISTRY
DOI: 10.1039/c4dt00388h

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  1. Natural Science Foundation of Jiangsu Province [BK2009262]
  2. [22108512]
  3. [23245014]

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Three new manganese coordination polymers, {[Mn-2(1,4-NDC)(2)(phen)(2)](H2O)}(n) (1), [Mn-2(1,4-NDC)(2)(phen)(H2O)](n) (2) and {[Mn-4(1,4-NDC)(4)(phen)(4)](DMF)(2)}(n) (3) (1,4-H2NDC = 1,4-naphthalene dicarboxylic acid; phen = 1,10-phenanthroline; DMF = N,N-dimethylformamide), have been synthesized solvo/hydrothermally. 1,4-NDC2- ligands adopt different coordination modes under different solvents and concentrations which promotes different crystal structure formation. X-ray crystal structural data reveal that compounds 1, 2 and 3 crystallize in monoclinic space groups C2/c, P2(1)/c and C2/c, respectively. Compound 1 has Mn-2 dimers connected by 1,4-NDC2- linkers, packing into a 2D structure in a grid pattern. Compound 2 has a three-dimensional (3D) structure which is constructed by Mn-2 dimers and 1,4-NDC2- linkers. Each MnO4N2 node of compound 3 is linked to another by 1,4-NDC2- ligands to form a two-dimensional (2D) structure. Variable-temperature magnetic susceptibilities of compounds 1-3 exhibit overall weak antiferromagnetic coupling between the adjacent Mn(II) ions.

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