Mechanism of electron transfer of a novel biferrocene trinuclear complex, P
t(LSB)(2), derived from the Schiff base ligand, HI SB, S - benzyl - N - (fe
rrocenyl - 1 - methyl - methylidene) - dithiocarbazate during redox process
is elucidated by in situ FTIR spectroelectrochemistry. The results indicat
e that two consecutive one - electron steps are involved which give the cor
responding mono - and di - ferricenium cations. This complex exhibits stron
g degree of electronic communication between the two - ferrocene moieties,
taking place through the skeleton chain of the ligand due to the extensive
electron delocalization of the whole molecule during redox process.