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Synthesis and spectroscopic characterization of high-spin mononuclear iron(II) p-semiquinonate complexes.


ABSTRACT: Two mononuclear iron(II) p-semiquinonate (pSQ) complexes have been generated via one-electron reduction of precursor complexes containing a substituted 1,4-naphthoquinone ligand. Detailed spectroscopic and computational analysis confirmed the presence of a coordinated pSQ radical ferromagnetically coupled to the high-spin Fe(II) center. The complexes are intended to model electronic interactions between (semi)quinone and iron cofactors in biology.

SUBMITTER: Baum AE 

PROVIDER: S-EPMC4254022 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature

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Synthesis and spectroscopic characterization of high-spin mononuclear iron(II) p-semiquinonate complexes.

Baum Amanda E AE   Park Heaweon H   Lindeman Sergey V SV   Fiedler Adam T AT  

Inorganic chemistry 20141113 23


Two mononuclear iron(II) p-semiquinonate (pSQ) complexes have been generated via one-electron reduction of precursor complexes containing a substituted 1,4-naphthoquinone ligand. Detailed spectroscopic and computational analysis confirmed the presence of a coordinated pSQ radical ferromagnetically coupled to the high-spin Fe(II) center. The complexes are intended to model electronic interactions between (semi)quinone and iron cofactors in biology. ...[more]

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