Abstract
Mössbauer and infrared spectroscopic studies of a series of iron(III) complexes of dicarboxylic acids, maleic, malonic, succinic, glutaric, adipic, pimelic, suberic, azealic and sebacic have been carried out at room temperature. All complexes exhibit a quadrupole doublet with isomer shift (δ) values in the range of 0.62 –0.72 mm·s−1 (with respect to SNP) and quadrupole splitting, ΔEQ=0.53–0.74 mm· s−1. It is observed that tris complexes are formed up to pimelic acid, while bis complexes are formed those for the other three acids. Isomer shift (δ) values do not vary significantly but ΔEQ values show a somewhat regular trend. Magnetic moment data indicate high spin Fe(III) in octahedral geometry.
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Lanjewar, R.B., Waditwar, A.M. & Garg, A.N. Quadrupole hyperfine interaction in iron(III) dicarboxylic acid complexes. Journal of Radioanalytical and Nuclear Chemistry, Articles 125, 75–84 (1988). https://doi.org/10.1007/BF02041751
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DOI: https://doi.org/10.1007/BF02041751