(a) FTIR spectra of the cyanide species and (b) crystallographic CN distance and cyanide stretching frequency versus the cluster oxidation level for n = 3 (7), 4 (8), 5 (9), and 6 (10). (c) Cyclic voltammograms of [(HL)2Fe6(CN)6]nā6 taken in DMF (red) and PC (maroon), [(HL)2Fe6(MeCN)6]n+ in MeCN (black), and [(HL)2Fe6(DMF)6]n+ in DMF (blue). All were taken in 0.1 M [Bu4N][PF6] at room temperature.