Single-molecule magnet behavior of a dinuclear dysprosium compound constructed by 8-hydroxyquinoline Schiff base and beta-diketonate ligands

摘要

A dinuclear dysprosium compound, [Dy-2(dbm)(4)L-2](2)(1) (Hdbm = 1,3-diphenyl-1,3-propanedione, HL = 2-[[(4-fluorophenyl)imino]methyl]-8-hydroxyquinoline), have been synthesized, structurally and magnetically characterized. The X-ray structural analysis exhibits that the compound 1 is phenoxo-O bridged binuclear compound, in which two Dy-III ions are bridged by two phenoxido oxygen atoms of two 8-hydroxyquinoline Schiff base ligands. Each Dy-III centers exhibit an eight-coordinated environment. Magnetic measurements indicated that slow relaxation of the magnetization was clearly observed in 1, typical of SMM behavior. (C) 2015 Elsevier B.V. All rights reserved.