Temperature controlled formation of polar copper phosphonates showing large dielectric anisotropy and a dehydration-induced switch from ferromagnetic to antiferromagnetic interactions

Peng Fei Wang, Song Song Bao, Xin Da Huang, T. Akutagawa, Li Min Zheng

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    The reaction of copper(ii) chloride with 2-carboxyphenylphosphonic acid (2-cppH3) under hydrothermal conditions at 100 °C results in the formation of a polar compound, Cu3(2-cpp)2(H2O)5 (1), which shows large dielectric anisotropy. A similar reaction at 140 °C results in a centrosymmetric phase, Cu3(2-cpp)2(H2O)2 (2). Compound 1 can convert into 2 upon increasing the reaction temperature under hydrothermal conditions, and further to Cu3(2-cpp)2 (3) upon thermal treatment at 240 °C. This process is accompanied by a switch from ferromagnetic in 1 to antiferromagnetic interactions in 2 and 3.

    Original languageEnglish
    Pages (from-to)6276-6279
    Number of pages4
    JournalChemical Communications
    Volume54
    Issue number49
    DOIs
    Publication statusPublished - 2018

    ASJC Scopus subject areas

    • Catalysis
    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Chemistry(all)
    • Surfaces, Coatings and Films
    • Metals and Alloys
    • Materials Chemistry

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