New Mn3 structural motifs in manganese single-molecule magnetism from the use of 2-pyridyloximate ligands

The use of 2-pyridyl oximes (L’H) in reactions with [ Mn 3 III O ( O 2 CR ) 6 ( py ) 3 ] ( ClO 4 ) has led to complexes [ Mn 3 III O ( O 2 CR ) 3 L 3 ′ ] ( ClO 4 ) . Ferromagnetic exchange interactions between the three MnIII ions in the complexes lead to spin ground states of S = 6. The complexes display the temperature- and scan rate-dependent hysteresis loops that are indicative of single-molecule magnetism behaviour.