Enhancing the ferromagnetic coupling in extended phloroglucinol complexes by increasing the metal SOMO–ligand overlap: synthesis and characterization of a trinuclear Co II3 triplesalophen complex†
Abstract
The triplesalophen complex [(baronMe)CoII3] has been synthesized and characterized. The low-spin CoII ions possess an 2A2 ground state with the magnetic orbitals of dyz type. These are well oriented for a strong π overlap with the bridging phloroglucinol, which results in the strongest ferromagnetic interactions by the spin-polarization mechanism for a 3d phloroglucinol complex.