A π-Carbazolyl Dy(III) Half-Sandwich Complex Showing Single-Molecule-Magnet Behavior

Abstract

We report the synthesis, structure, and magnetic investigations of the new Dy3+ heteroleptic complex [Dy(tBu4Carb)(o-Me2NC6H4CH2)2]·C7H8 (1; tBu4Carb = 1,3,6,8-tetra-tert-butyl-9H-carbazole, o-Me2NC6H4CH2)2 = o-N,N-dimethylaminobenzyl). The carbazolyl ligand exhibits an unprecedented η5 πinteraction with the magnetically anisotropic dysprosium(III) ion, resulting in a zero-field single-molecule-magnet behavior.