Slow magnetic relaxation in a heteroleptic anilate-based Dy III metal-organic framework.

Novel heteroleptic anilate-based lanthanide MOFs (Ln III = Tb, Dy, Ho) have been obtained under hydrothermal conditions by the ancillary ligand synthetic strategy. These structurally isomorphous species contain octacoordinated Ln III ions with coordination polyhedra approaching an ideal D 2d symmetry, best described by a distorted biaugmented trigonal prismatic C 2v geometry. In the whole series, only the Dy-MOF exhibits SMM behaviour.