Self‐Assembly of a Ferromagnetically Coupled Manganese(<scp>II</scp>) Tetramer

Abstract

π-Stacking interactions between adjacent aromatic ligand fragments of L− separated by approximately 3.4 Å provides a pathway for weak ferromagnetic coupling in the tetramer [Mn4L4](PF6)4 (1). The cavity of L− is too large for a single MnII ion; instead the tetramer 1 comprises a Mn4 tetrahedron, with a ligand L− attached to each triangular face. In the self-assembly of 1, eight components are combined under the formation of 24 MnN bonds to give a complicated structure.