Comments on "Magnetic phase transition, aggregate formation, and electrical conductivity in FeCl3-doped polyacetylene"

Mössbauer and chemical analysis studies, of ${\left(\mathrm{CH}\right)}_x$ oxidized chemically with Fe${\mathrm{Cl}}_3$ or oxidized electro-chemically in LiCl-Fe${\mathrm{Cl}}_3$ -C${\mathrm{H}}_3$N${\mathrm{O}}_2$, show that only Fe${\mathrm{Cl}}_4^{-}$ species exists in the system. The ${\mathrm{Fe}}^{2+}$ appears either as a degradation product, or as a result of washing with nitromethane that is not properly dried, and forms a separate phase of $\mathrm{Fe}{\mathrm{Cl}}_2·n{\mathrm{H}}_2\mathrm{O} (n=1, 2, or 4)$.