Slow magnetization relaxation in a one-dimensional dysprosium-carboxylate compound based on the linear Dy4 units synthesized ionothermally from a deep-eutectic solvent

• A dysprosium compound has been synthesized ionothermally from a deep-eutectic solvent.
• One-dimensional dysprosium-carboxylate chain is constructed from a linear Dy4 unit.
• Electrochemical catalyst for water oxidation
• A dysprosium-carboxylate compound exhibits a slow magnetic relaxation behavior.

A dysprosium-carboxylate coordination polymer, {[Dy2(2,2′-bpdc)3(e-urea)(H2O)](e-urea)}n (1) (2,2′-bpdc2 − = 2,2′-biphenyldicarboxylate and e-urea = ethyleneurea), has been synthesized using a deep-eutectic solvent of choline chloride/e-urea. Four Dy3 + ions are linked by the carboxylate oxygen atoms of the 2,2′-bpdc2 − ligands to form a linear Dy4 unit, which is further linked by the carboxylate groups of the 2,2′-bpdc2 − ligands to give a rare example of one-dimensional chain based on the linear Dy4 secondary building units. Detailed static and dynamic magnetic analysis of 1 revealed that 1 exhibits a slow magnetic relaxation behavior.

A dysprosium-carboxylate compound featuring a one-dimensional chain based on the linear Dy4 units has been synthesized ionothermally from a deep-eutectic solvent of choline chloride/e-urea. Detailed magnetic studies reveal that the compound exhibits slow magnetic relaxation behavior.Figure optionsDownload as PowerPoint slide