Electrochemical Signature of the Coordination Mode in Metal Complexes With a tris-Ferrocenyl Derivative of the Taci Ligand

A new electroactive ligand L built on the Taci (1,3,5-triamino-1,3,5-trideoxy-cis-inositol) platform and bearing three chemically equivalent ferrocene units was prepared and characterized. Electrochemical investigations indicate that electrostatic communication occurs between the three ferrocene groups in L, this electrochemical communication being disrupted in the presence of protons or nucleophilic reagents. Upon addition of metal cations, the electroactivity of L is strongly modified and a remarkable electrochemical signature of the coordination mode adopted by the corresponding complexes is obtained.