Charge transfers influence on the spin ground state of manganese and iron superoxide dismutases: a DFT study on a model of the reduced active site interacting with O2−

Literature Information

Publication Date 2003-01-15
DOI 10.1039/B211427E
Impact Factor 6.222
Authors

Rosa Carrasco, Irène Morgenstern-Badarau, Joan Cano


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Abstract

From DFT and time-dependent DFT calculations on MnIISOD and FeIISOD active site models interacting with O2− we have determined that metal-to-ligand charge transfers stabilise the S = 2 and S = 5/2 spin states as ground spin states for the [MnIISOD-O2−] and [FeIISOD-O2−] model complexes, respectively. These charge transfers are ruled by the electronic configuration of the metal ion, and they can be determinant in the catalysis reaction.

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