Tuning anisotropy barriers in a family of tetrairon (III) single-molecule magnets with an S=5 ground state

Tetrairon (III) single-molecule magnets (SMMs) with a propeller-like structure exhibit tuneable magnetic anistropy barriers in both heights and shape. The iron (III) ions exhibit a centered-triangular topology and are linked by six alkoxo bridges, which propagate antiferromagnetic interactions resulting in an S = 5 ground spin state.