Synthesis, electrochemical and spectroelectrochemical studies of metal-free 2,9,16,23-tetraferrocenylphthalocyanine

Abstract

Clclic voltammetric, differential pulse voltammetric and sp€ctroelectrochemical methods have been used to study the newly synthesized metal-free 2,9,I6,23-ta$aferrocenylphthalocyanine in dichloroethane. Two reversible reduction peaks are obtained, corresponding to electrode reactions of the phthalocyanine ring. The multiple fcrrocenyl redox centers are oxidized at one potcntial. The electronic spectra are reported for this species in different oxidation states.

Investigations of nanometric films of doped polyaniline by using electrochemical surface plasmon resonance and electrochemical quartz crystal microbalance

“…In addition, at this potential, the band at 800 nm for conducting PANI do not occur as verified by other researchers [34]. Another important aspect to be emphasized is the known shift of the Q band of the phthalocyanines under negative-going voltammetric scan shifts toward lower wavelength regions, [36,37] justifying the transparent aspect of the films when it was polarized in À100 mV.…”

Voltammetric and spectroelectrochemical properties of titanylphthalocyanines bearing catecholato and naphthalenediolato moieties

“…Spectral changes in Fig. 4D for the oxidation processes of 1 are typical of ring-based oxidation in phthalocyanine complexes [23][24][25][26][27][28][29][30][31][32][33]. The process has isosbestic points at 323, 366, 450 and 763 nm in the spectra.…”

m-Ferrocenylbenzoate-bridged lanthanide coordination polymers: Syntheses, structures, electrochemical and magnetic properties

“…It is because that the electron-donating ability of the conjugated phenyl ring group just partially serves to counteract the electron-withdrawing inductive effect of the carboxylate group, which makes the halfwave potential of m-HOOCH 4 C 6 Fc raise above that of free ferrocene [35,36]. Furthermore, the half-wave potentials of 1e5 are slightly more positive (ca.…”