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Synthesis, Crystal Structure, Magnetic Properties of a Manganese(II) Coordination Polymer with Double-Helix Chains

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Abstract

A new heterocyclic carboxylate ligand, 5-(4′-pyridyl)-3-methyl-benzoic acid (Hpmba), was synthesized to construct a Mn(II) coordination polymer, namely [Mn(pmba)2] n (1). Complex 1 crystallizes in monoclinic space group C2/c, with a = 17.44(2), b = 17.040(12), c = 8.680(15) Å, β = 111.258(13), V = 2404(5) Å3, and Z = 4. Single-crystal X-ray diffraction studies show that complex 1 has a 3D metal-organic supramolecular framework consisting of double helical chains. Magnetic studies for complex 1 show antiferromagnetic coupling between the nearest Mn(II) ions, with g = 2.11 and J = −10.1 cm−1.

Graphical Abstract

A new Mn(II) coordination polymer [Mn(pmba)2] n (1) based on Hpmba has been synthesized and structurally characterized. It has a 3D metal-organic supramolecular framework consisting of double-helix chains. Magnetic analysis indicates weak antiferromagnetic coupling between Mn(II) ions.

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Acknowledgments

This study was supported by the National Natural Science Foundation of China (Project No. 21071068).

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Authors and Affiliations

  1. Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China

    Jin-Zhong Gu, Dong-Yu Lv & Wei Dou

  2. School of Chemistry and Biology Engineering, Taiyuan University of Science and Technology, Taiyuan, 030021, China

    Zhu-Qing Gao

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  1. Jin-Zhong Gu
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  2. Zhu-Qing Gao
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  4. Wei Dou
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Correspondence to Jin-Zhong Gu.

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Gu, JZ., Gao, ZQ., Lv, DY. et al. Synthesis, Crystal Structure, Magnetic Properties of a Manganese(II) Coordination Polymer with Double-Helix Chains. J Chem Crystallogr 42, 205–209 (2012). https://doi.org/10.1007/s10870-011-0225-1

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  • DOI: https://doi.org/10.1007/s10870-011-0225-1

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