Synthesis, structure, magnetic and luminescence properties of two dysprosium single-molecule magnets based on phenoxide dye ligands

摘要

We report here two dysprosium complexes based on phenoxide-based emissive ligands 1-(2,4-dimetylphenylazo)-2-naphtholate (L1) and anthracenolate (L2). While 1 is a dinuclear homoleptic complex [Dy-2(L1)(6)].2C(7)H(8) exhibiting zero-field slow relaxation of magnetization, 2 is a mononuclear complex [Dy(L2)(3)(py)(3)] (py = pyridine) showing field-induced relaxation.