Synthesis and Characterization of Substituted [Fe(Cn)5l]- Complexes(L = para and ortho nitroaniline and nitrophenol)
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Date
1995-06
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Addis Ababa Universty
Abstract
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.
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Keywords
Pentacyanoferrate(ll) complexes, NaJ[Fe(CN)sLr·.xH20