Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (2): 215.

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Synthesis and Magnetic Property of Cyanide-bridged Fe(Ⅲ)-Cu(Ⅱ) Complexes

CUI Ai-Li, NI Wei-Wei, KOU Hui-Zhong*   

  1. Department of Chemistry, Tsinghua University, Beijing 100084, China
  • Received:2009-07-16 Online:2010-02-10 Published:2010-02-10
  • Contact: KOU Hui-Zhong. E-mail: kouhz@mail.tsinghua.edu.cn
  • Supported by:

    国家“九七三”项目(批准号: 2009CB623301)和国家自然科学基金(批准号: 20671055)资助.

Abstract:

Three cyanide-bridged Fe(Ⅲ)-Cu(Ⅱ) complexes derived from[Fe(CN)5L]2-[L=1-methyl-imidazole(1-Meim) or imidazole(Him)] and Cu(Ⅱ) macrocyclic building blocks were synthesized and their crystal structures and magnetic properties were studied. Structural analysis shows that they have one-dimensional chain structures. Each Cu(Ⅱ) ion possesses an elongated coordination geometry with two cyanide nitrogen atoms situated at the trans axial positions, and in turn each Fe(Ⅲ) connects two Cu(Ⅱ) ions with two cyanide ligands, generating alternate chainlike structures. Magnetic measurements show that two complexes display ferromagnetic interaction, and one compound exhibits unusual antiferromagnetic property.

Key words: Copper; Iron; Cyanide ligand; Crystal structure; Magnetic property

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