ELECTROCHEMICAL STUDIES OF ORGANOMETALLIC COMPOUNDS I. ON THE REVERSIBILITY OF THE FIRST REDUCTION STAGE OF TITANOCENE DICHLORIDE

Article abstract of DOI:10.1016/S0022-328X(00)82472-9

The 1e reduction of titanocene dichloride (η⁵-Cp2TiCl2) in various solvents has been examined in detail by polarography, voltammetry on a disk electrode, and linear potential sweep voltammetry.In all cases, the electron uptake is followed by a fast loss of Cl^-, which is replaced by a neutral ligand (which can be a solvent molecule).In tetrahydrofuran, whose binding ability is weak, a pseudo reversible behaviour is observed due to a return of Cl^- to the molecule.In dimethylformamide, which is strongly bonded, the reaction is irreversible.In pyridine, it can be reversible or irreversible according to the conditions.