New Cu4Ln2 complexes exhibit single-molecule magnetism and significant magnetic entropy changes, suggesting novel applications in magnetocaloric materials.
A new family of {Cu4Ln2} (Ln = Gd, Tb and Dy) complexes bearing the gem-diol form of di-2-pyridyl ketone [(py)2CO] ligand is reported. Magnetic studies reveal the presence of predominant ferromagnetic exchange interactions between the metal ions. As a result, the hexanuclear compounds exhibit single-molecule magnetism behavior and large magnetic entropy changes, depending on the 4f-metal ion present.
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Alexandropoulos et al. (2018) studied this question.
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