Two Extended 5-Methyltetrazolate-Based Magnetic Complexes: Synthesis, Structure, and Magnetic Properties

Authors

  • Jing Liu,

    1. College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, P. R. China
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  • Hui-Ming Dong,

    1. College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, P. R. China
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  • En-Cui Yang,

    Corresponding author
    1. College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, P. R. China
    • En-Cui Yang, College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, P. R. China, Fax: +86-22-23766556

      Xiao-Jun Zhao, College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, P. R. China

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  • Xiao-Jun Zhao

    Corresponding author
    1. College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, P. R. China
    • En-Cui Yang, College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, P. R. China, Fax: +86-22-23766556

      Xiao-Jun Zhao, College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin 300387, P. R. China

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  • Supporting Information for this article is available on the WWW under http://dx.doi.org/10.1002/zaac.201300297 or from the author.

Abstract

Two 5-methyl-tetrazolate (mtz)-based paramagnetic metal coordination polymers, {[Cu2(H2O)2(mtz)(μ3-OH)(nip)]·H2O}n (1) and [Cu(H2O)(mtz)2]n (2), were obtained in the presence and absence of aromatic 5-nitroisophathalate (nip2–) coligand by varying the preparation methods. Structural determinations reveal that 1 is a three-dimensional (3D) framework with corner-sharing triangular ribbons infinitely extended by ditopic nip2– connectors. In contrast, 2 is a coplanar (4,4) layer constructed from square-pyramidal CuII ions and μ-N1,N4-mtz linkers, which is further assembled into a 3D supramolecular network by interlayer hydrogen-bonding interactions. Magnetically, spin-frustrated antiferromagnetic ordering is observed in the 3D framework of 1 and canted antiferromagnetic behavior with a slight spin-flop transition is presented in 2, which are structurally resulting from the locally Δ-ribbon in 1 and asymmetric magnetic superexchange mediated by the μ-N1,N4-mtz bridge of 2.

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