Abstract
Three [Ln2] complexes, [Ln2(dbm)4(L′)2] (Ln = Tb(1), Dy(2), Ho(3)), were synthesized, and structurally and magnetically analysed. The structural analysis revealed that a rare ligand-transformation in the field of organic chemistry and coordination chemistry occured during the coordination process, where the original Schiff-base ligand HL (2-[[(1,2,4-triazole)-4-imino]methyl]-8-hydroxy-quinoline) was transformed to coordinated ligand HL′ (methyl-8-hydroxyquinoline-2-carboxylate). Static and dynamic magnetic analysis of 1–3 demonstrated single-molecule magnet (SMM) behavior for complex 2 with effective energy barrier of 61.7 K at zero dc field.
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