The experimental determination of Th(iv)/Th(iii) redox potentials in organometallic thorium complexes.

The first Th-IV/Th-III redox couple values have been determined experimentally using cyclic voltammetry (CV), which has been facilitated by the use of [(Bu4N)-Bu-n][BPh4] as a supporting electrolyte in THF. Th(iv) and Th(iii) metallocene compounds have been studied and their redox couple values are in the range of -2.96 V to -3.32 V vs FeCp2+/0.