Mössbauer-Effekt am Fe57 in Additions-und Substitutionsverbindungen des Natrium-Nitrosylprussiates / Mössbauer-Effect in Fe57 of Addition and Substitution Compounds of Sodium Nitroprusside

Abstract

Abstract Investigating 21 iron complex compounds of the type [Fe(CN)5NOL]n- or [Fe(CN)5L]3- it was found that isomeric shift, quadrupol splitting, and Goldanskii effect depend on the purity of the compound. Varying the amount of impurity discrepancies between formerly published data could be explained. The Mössbauer spectra of three compounds showed line widths differing from the theoretical value only by a few per cent. This indicated that a very high purity had been achieved. In all cases information about the molecular structure and the bond strength between the central Fe-atom and its ligands was obtained.