Spectrophotometric studies of some charge-transfer complexes of tetracyanoethylene with poly(N-vinyl halogenocarbazoles)

Abstract

The results and numerical analysis of measurements of absorption spectra of charge-transfer complexes of poly(N-vinyl halogenocarbazoles) with tetracyanoethylene are presented. The absorption bands result from donor–acceptor interaction together with values of equilibrium constants, enthalpy, and oscillators strengths of investigated complexes allowed us to conclude that isomerism of complexing took place. The influence of halogen substituents (mono- and disubstitution) in positions 3 and 6 of the carbazole ring (polymeric donor) on the spectral properties of its complexes was observed.