Addressing the Metal Centers of [2×2] CoII₄ Grid‐Type Complexes by STM/STS

The controlled deposition of grid-type [2×2] CoII4 complexes onto graphite rendered free-standing 0D, 1D, and 2D molecular arrangements, which were examined by STM techniques. Scanning tunneling spectroscopy (STS) investigations enabled the direct addressing of the metal centers at the single-molecule level (see image). The experimentally determined intramolecular positions of the CoII centers are in agreement with DFT calculations of the molecule.