Experimental Techniques: Theory and Application to Iron(III) Model Compounds
Particularly useful techniques for identifying the presence of polynuclear iron(III) ions are those that are sensitive to the characteristic feature of the cluster—the interaction between the different sets of 3d electrons. In this regard the magnetic moment, its temperature dependence and the e.p.r. spectrum are particularly important probes. Several other techniques have been used to elucidate structural details of the co-ordination geometry, the bonding between iron atoms in the cluster and between the cluster and the protein. These include electronic-absorption spectroscopy within the d5 configuration, Mössbauer and vibrational spectroscopies and X-ray diffraction.
KeywordsLigand Field Antiferromagnetic Coupling Nuclear Excited State Hyperfine Spectrum Octahedral Iron
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