Synthesis and Electrochemical Properties of Oligo- and Poly(thienylphenylamine)s
摘要:
The oxidative polymerization of tris(thienylphenyl)amine derivatives was performed in acetonitrile by electrochemical and chemical methods. Oligomers were synthesized by stepwise coupling using coupling reactions. The polymer prepared using the trifunctional monomer on a Pt electrode showed significantly better redox behavior compared to that of the linear polymeric analogue, The branching polymers exhibit conductivity of 2-6 S/cm, which is more than 1 order of magnitude greater than the analogous linear polymer. The electropolymerization of trifunctional monomers provides the formation of a large amount of redox active polymers with a large capacity (ca. 40 mC/cm(2)) and a good redox activity in the electron transfer of ferrocene on the electrode.
Synthesis and Electrochemical Properties of Oligo- and Poly(thienylphenylamine)s
摘要:
The oxidative polymerization of tris(thienylphenyl)amine derivatives was performed in acetonitrile by electrochemical and chemical methods. Oligomers were synthesized by stepwise coupling using coupling reactions. The polymer prepared using the trifunctional monomer on a Pt electrode showed significantly better redox behavior compared to that of the linear polymeric analogue, The branching polymers exhibit conductivity of 2-6 S/cm, which is more than 1 order of magnitude greater than the analogous linear polymer. The electropolymerization of trifunctional monomers provides the formation of a large amount of redox active polymers with a large capacity (ca. 40 mC/cm(2)) and a good redox activity in the electron transfer of ferrocene on the electrode.
Thienyl Triarylamines. Reactivity and Spectra of Cation Radicals and Dications.
作者:Ibro Tabakovic、Yoshihito Kunugi、Augusto Canavesi、Larry L. Miller、Giovanni V. Sebastiani、George W. Francis、József Szúnyog、Bengt Långström
DOI:10.3891/acta.chem.scand.52-0131
日期:——
The alpha-thienyl substituted triarylamines, bis(4-bromophenyl)-4-(2-thienyl)-phenylamine (1), (4-bromophenyl)bis-[4-(2-thienyl)phenyl]amine (2) and tris[4-(2-thienyl)phenyl]amine (3) were prepared as novel molecular systems for photoelectrical conversion. Electrochemical oxidations using solvents like hexafluoroisopropanol were performed to evaluate the stability of the corresponding cation radicals. The dimer 5,5'-bis[4-di(4-bromophenyl)amino]phenyl}-2,2'-bithiophene (1D) was prepared by an electrochemical oxidation-reduction sequence. Chemical and electrochemical oxidations of 1D were studied and UV-VIS-NIR spectra of the neutral, cation radical and dication are reported.