Abstract

Three β–diketonate mononuclear Ln-based compounds, formulated as [TbIII(hfac)3(dmbpy)](1), [DyIII(hfac)3(dmbpy)](2) and [ErIII(hfac)3(dmbpy)](3) (hfac=hexafluoroacetylacetone, dmbpy=4,4′-dimethyl-2,2′-dipyridyl) have been synthesized and structurally characterized by single crystal X-ray diffraction. Structure characterization reveals that complexes 1, 2 and 3 are isomorphous. Shape measurement shows the coordination geometry of complex 2 is trigonal dodecahedron (D2d). Magnetic property study indicates complex 2 shows SIM behavior with observed frequency-dependent signals at low temperature.

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