3 years ago

Models for Unsymmetrical Active Sites in Metalloproteins: Structural, Redox, and Magnetic Properties of Bimetallic Complexes with MII-(μ-OH)-FeIII Cores

Models for Unsymmetrical Active Sites in Metalloproteins: Structural, Redox, and Magnetic Properties of Bimetallic Complexes with MII-(μ-OH)-FeIII Cores
A. S. Borovik, Nathanael Lau, Yohei Sano, Andrew C. Weitz, Michael P. Hendrich, Joseph W. Ziller
Discrete bimetallic complexes with MII-(μ-OH)-FeIII (MII = Mn, Fe, Co, Ni, Cu, Zn) cores have been prepared, and X-ray diffraction studies found that they all had similar overall structures. The properties of the complexes were examined, which allowed for an evaluation on the effects of the divalent metal ions. For instance, electron paramagnetic resonance spectroscopy investigations revealed that the observed overall spin states (Sc) varied incrementally from Sc = 0 through Sc = 5/2, which is consistent with antiferromagnetic coupling between the high-spin MII and FeIII centers.

Publisher URL: http://dx.doi.org/10.1021/acs.inorgchem.7b02230

DOI: 10.1021/acs.inorgchem.7b02230

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