Study on the spectroelectrochemical properties of S-benzyl-N-(ferrocenyl-1-methyl-metylidene)-dithio-carbazate nickel (II) complex

Mechanism of electron transfer of a bridge biferrocene complex, Ni(LSB)(2), derived from the Schiff base ligand, HLSB, S-benzyl-N-(ferrocenyl-1-methyl-metylidene)-dithio-carbazate Ni(LSB)(2), during redox processes is illuminated by in-situ Fourier transform infrared (FTIR) spectroelectrochemistry. The results indicated that two consecutive one-electron steps were involved which gives the corresponding mono- and di-ferricenium cations, respectively. This complex exhibits moderately strong degree of electronic communication between the two-ferrocene moieties, taking place through the skeleton chain of the ligand due to an extensive electron delocalization in the molecule. Possible pathways of electron transfer of Ni(LSB)(2) during the redox processes are postulated. (C) 2002 Elsevier Science, B.V. All rights reserved.