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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/26675

    標題: Synthesis and properties of new tetrachlorocobaltate (II) and tetrachloromanganate (II) anion salts with dicationic counterions
    作者: Chang, Jui-Cheng
    Ho, Wen-Yueh
    Sun, I-Wen
    Chou, Yu-Kai
    Hsieh, Hsin-Hsiu
    Wu, Tzi-Yi
    貢獻者: 化粧品應用與管理系
    日期: 2011-02
    上傳時間: 2013-06-03 15:52:57 (UTC+8)
    出版者: Elsevier
    摘要: New tetrachlorocobaltate (II) and tetrachloromanganate (II) ionic compounds containing various counterdications were synthesized and characterized. These salts are soluble in polar solvents such as methanol and water. Physical properties such as thermal stability, melting point, and magnetic susceptibility of these salts depend on the cation or anion structure. The thermal stability of the phosphinium or imidazolium based salts is higher than that of the pyridinium or triethylaminonium analogues. The melting point of these compounds is following the order of triphenylphosphinium > pyridinium > imidazolium dications, and symmetrical dicationic salts > unsymmetrical ones. The magnetic susceptibility (χMT values) of tetrachloromanganate (II) anions-based salts is higher than that of tetrachlorocobaltate (II) anions-based salts. These dicationic salts exhibit weak antiferromagnetic interactions and have higher magnetic susceptibility than that of the previously reported tetrachloromanganate (II) and tetrachlorocobaltate(II) salts with monocationic counterion.
    關聯: Polyhedron 30(3), pp. 497-507
    Appears in Collections:[化妝品應用與管理系(所)] 期刊論文

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