Front Cover: Manganese (III/IV) μ‐Oxo Dimers and Manganese (III) Monomers with Tetraaza Macrocyclic Ligands and Historically Relevant Open‐Chain Ligands (Eur. J. Inorg. Chem. 19/2022)

The Front Cover shows how the discovery of manganese containing enzymes has prompted a range of synthetic small-molecule complexes to be used as structural and functional mimics of the metalloenzyme chemistries. On the basis of this work, aza-macrocyclic ligands have resulted in a small library of Mn(III) and bis μ-oxo Mn(III)/Mn(IV) complexes, which built on the earlier work established with open-chain ligand scaffolds. The characterization and structural information from these studies has now allowed studies to be expanded to applications beyond mimicking the metalloenzymes that inspired their synthesis, making the transit between monomeric Mn(III) and Mn(III)/Mn(IV) μ-oxo dimer complexes of great interest. More information can be found in the Review by K. N. Green and co-workers.