I. Tabakovic et al., THIENYL TRIARYLAMINES - REACTIVITY AND SPECTRA OF CATION RADICALS ANDDICATIONS, Acta chemica Scandinavica, 52(1), 1998, pp. 131-136
The alpha-thienyl substituted triarylamines, bis(4-bromophenyl)-4-(2-t
hienyl)-phenylamine (1), (4-bromophenyl)bis-[4-(2-thienyl)phenyl]amine
(2) and tris[4-(2-thienyl)phenyl]amine (3) were prepared as novel mol
ecular systems for photoelectrical conversion. Electrochemical oxidati
ons using solvents like hexafluoroisopropanol were performed to evalua
te the stability of the corresponding cation radicals. The dimer [4-di
(4-bromophenyl)amino]phenyl}-2,2'-bithiophene (1D) was prepared by an
electrochemical oxidation-reduction sequence. Chemical and electrochem
ical oxidations of 1D were studied and UV-VIS-NIR spectra of the neutr
al, cation radical and dication are reported.