Abstract
Polymeric compounds were prepared by reacting ferrous oxalate dihydrate with the ligands triethylenediamine, 1-aminoadamantane and trithiocyanuric acid. All compounds formed were infusible (up to 330°C), insoluble and nonstoichiometric. In all compounds the quadridentate structure of the oxalate groups was preserved. Some of them were mixed-valence Fe(II, III), as evidenced by Mössbauer measurements, which parameters were characteristic of high-spin Fe(II) and Fe(III). The quadrupole splitting and the isomer shift for all Fe(II) sites were essentially identical with those for the Fe(II) site in ferrous oxalate dihydrate. Neither a complete oxidation nor a total substitution of the water molecules of the oxalate by the ligands were observed.
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Abras, A., Figueiredo de Oliveira, E. Synthesis and Mössbauer study of iron oxalate coordination polymers of the type Fe(C2O4)(L) x (H2O)22−x . Hyperfine Interact 66, 271–278 (1991). https://doi.org/10.1007/BF02395874
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DOI: https://doi.org/10.1007/BF02395874