One new planar Dy4 compound: Synthesis, structure and its magnetic dynamics behaviors

Abstract The self-assembly of tetranuclear dysprosium based on triangular Dy 3 system by using 5-(4-methoxybenzylidene)-8-hydroxylquinoline (HL) and 1,3-diphenyl-1,3-propanedione (dppd) afford a new compound [Dy 4 (μ 3 -OH) 2 L 6 (dppd) 4 ]·2CH 3 CN ( 1 ). It was structurally and magnetically characterized. The results indicate that the four Dy ions is of typical rhombus topology and weak ferromagnetic interactions exists between adjacent Dy 3+ ions. Additionally, it also displays slow magnetic relaxation behavior with energy barrier U eff of 62.36 K.