Electron‐Density Investigation of Metal–Metal Bonding in the Dinuclear “Borylene” Complex [{Cp(CO)₂Mn}₂(μ‐BtBu)]

Close but not bonded are the two manganese atoms in the title borylene complex. The charge-density study demonstrates that the μ-bridging BR ligand forms valence shell charge concentrations to each metal center rather than a single one to the metal–metal midpoint as found for the isolobal CO ligand in analogous dinuclear species.