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J Am Chem Soc. 2017 Feb 01;139(4):1472-1484. doi: 10.1021/jacs.6b08394. Epub 2017 Jan 23.

Switching between Inner- and Outer-Sphere PCET Mechanisms of Small-Molecule Activation: Superoxide Dismutation and Oxygen/Superoxide Reduction Reactivity Deriving from the Same Manganese Complex.

Journal of the American Chemical Society

Isabell Kenkel, Alicja Franke, Maximilian Dürr, Achim Zahl, Carlos Dücker-Benfer, Jens Langer, Milos R Filipović, Meng Yu, Ralph Puchta, Stephanie R Fiedler, Matthew P Shores, Christian R Goldsmith, Ivana Ivanović-Burmazović

Affiliations

  1. Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany.
  2. Department of Chemistry and Biochemistry, Auburn University , Auburn, Alabama 36849, United States.
  3. Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523-1872, United States.

PMID: 28111938 DOI: 10.1021/jacs.6b08394

Abstract

Readily exchangeable water molecules are commonly found in the active sites of oxidoreductases, yet the overwhelming majority of studies on small-molecule mimics of these enzymes entirely ignores the contribution of water to the reactivity. Studies of how these enzymes can continue to function in spite of the presence of highly oxidizing species are likewise limited. The mononuclear Mn

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