Browsing by Author "Hagos, Mussie"

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    Synthesis and Characterization of Substituted [Fe(Cn)5l]- Complexes(L = para and ortho nitroaniline and nitrophenol)
    (Addis Ababa Universty, 1995-06) Hagos, Mussie; Retta, Negussie (PhD)
    A study is presented on the synthesis and characterization of the pentacyanoferrate(ll) complexes, NaJ[Fe(CN)sLr·.xH20 where L ~ p-nitroaniline, o-nitroanline, p-nitrophenol, and o-nitrophenol. The structure of the synthesized complexes were confirmed by using IR, NMR, and UV-VIS spectroscopy and cyclic-voltammetry measurements. Melting points were used to determine the purity of the synthesized complexes. Atomic absorption spectroscopy was used for the analysis of sodium and iron and results confirmed the proposed stoichiometric formula of the complexes. Cyclic-voltammetric measurements indicated the occurrence of one reversible wave for each complex. These were assigned to the oxidation of Fe(ll) and reduction of Fe(1I1) in the reversible wave cycle. Low solid conductivity of the complexes were observed. This is related to the strength of the iron (II) - cyanide bond.