Single-ion magnet behavior of a new mononuclear dysprosium complex

A new mononuclear dysprosium complex formulated as [Dy(dppz) (tfnb)3]·0.375H2O (dppz = dipyrido[3,2-a:2′,3′-c]phenazine; tfnb = 4,4,4-trifluoro-1-(2-naphthyl)-1,3- butanedione) was synthesized, structurally and magnetically characterized. X-ray diffraction study reveals that the central DyIII ion in the complex adopts an approximately square-antiprismatic (SAP) geometry. The complex shows frequency-dependent ac magnetic susceptibilities, indicating single-ion magnet behavior.

Graphical abstractWe have synthesized and structurally characterized a new mononuclear complex, which shows typical single-ion magnet behavior.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We synthesized a new dysprosium complex with its crystal structure characterized. ► Dc and ac magnetic susceptibilities of the complex were studied. ► The complex shows typical single-ion magnet behavior. ► The thermal activated relation energy barrier of the complex up to 65 K.