Mononuclear dysprosium single-molecular magnet with D5h configuration and preparation method of mononuclear dysprosium single-molecular magnet

The invention discloses a mononuclear dysprosium single-molecule magnet with a D5h configuration and a preparation method of the mononuclear dysprosium single-molecule magnet. The magnet is obtained by taking N, N '-di (4-Br-2-methylene pyridine)-N, N'-di (2-methylene phenol) ethylenediamine ligand (H2bbpen-4-Br), anhydrous dysprosium chloride and triethylamine as raw materials through a solvent evaporation method. Wherein the Dy (III) ion is in a seven-coordinated pentagonal bipyramid configuration (D5h), and the deviation value of the Dy (III) ion to the ideal pentagonal bipyramid configuration is 2.039 (7). Due to the fact that the volume of the ligand is large, Dy (III) ions are far away from each other, and magnetic tests show that the magnet has a single-molecule magnet behavior, the effective energy barrier Ueff of the magnet is 665.76 cm (932.1 K), and the relaxation time tau 0 is 2.68 * 10 s. 本发明公开了一种具有D5h构型单核镝单分子磁体及其制备方法。该磁体以N,N′-二(4-Br-2-亚甲基吡啶)-N,N′-二(2-亚甲基苯酚)乙二胺配体(H2bbpen-4-Br)、无水氯化镝以