Abstract
Nuclear forward scattering (NFS) of synchrotron radiation was applied to investigate the electronic and magnetic properties of (i) the diamagnetic “picket-fence” porphyrin FeO2(SC6HF4)(TPpivP), which is a model for oxygenated hemoglobin and myoglobin and (ii) the paramagnetic “picket-fence” porphyrin [Fe(CH3COOH)(TPpivP)]—, which is a model for the ferrous state of the prosthetic group, termed P460, of the multi-heme enzyme hydroxylamine oxidoreductase from the bacterium Nitrosomonas europeae.
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