The differences between the flat and vertical configurations of the Fc/Au(111) adsorptions can be attributed to the bidirectional nature of charge transfer in the vertical configurations. Combined with the stability of adsorptions, which show that vertical adsorption configurations are more stable, it can be inferred that the interaction between the top-layer Au atoms as net electron acceptors and the net electron charge depletion from the bottom Fc Cp ring, which are knit together through a circuit on the Fc(⏊)/Au(111) systems, resulting in more stable adsorptions.