Emission Mössbauer spectroscopy in 57Co doped metal acetylacetonates of Al(III), Cr(III), Mn(III), Fe(III) and Co(III)

Abstract Metal acetylacetonates of Al(III), Cr(III), Mn(III), Fe(III) and Co(III) were doped with high specific activity carrier free 57 Co 2+ and their emission Mossbauer spectra taken against enriched Na 4 Fe(CN) 6 . In the case of Al(III), Cr(III) and Co(III) complexes a simple quadrupole split pattern is obtained, while with Mn(III) and Fe(III) acetylacetonates the spectra corresponds to that of 57 Co(AcAc) 3 . These results have been discussed.