In this work the syntheses of novel bis(eta5-cyclopentadienyl)(2,3-quinoxaline-dithiolato)titanium(IV) derivatives and bis(eta5-cyclopentadienyl)(1-phenyl)(2-methyl)(1,2-ethenedithiolato)titanium(IV) is described. The redox properties of these compounds along with the properties of similar bis(eta5-cyclopentadienyl)(ene-1,2-dithiolato)titanium(IV) complexes are assessed in neutral solutions. All the compounds exhibited a reversible one electron reduction process, the potential at which the reduction occurs being dependent on the nature of the dithiolato ligand. A second reduction process is observed on the 2,3-quinoxaline derivatives. The properties of the latter are also assessed in acidic solution and the presence of H+ has a small effect on both processes, suggesting that the same type of event occurs under both conditions.
dithiolenes; redox properties; titanium(IV) dithiolato
