Chalcone-analogous ferrocenes ortho-substituted in the aromatic ring were prepared and their oxidation potentials measured by cyclic voltammetry. Ortho-substituted analogues show a greater increase in oxidation potentials than the meta- and para-analogues. The configurations, conformations and electron distributions of these compounds were investigated by IR, 1H and 13C NMR techniques. Linear correlations were found between the electronegativity of the substituents and the oxidation potentials, and between the IR carbonyl frequencies, some carbon chemical shifts and the oxidation potentials.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Materials Chemistry