13 research outputs found
Structural insights into nonheme alkylperoxoiron(III) and oxoiron(IV) intermediates by x-ray absorption spectroscopy
Full text linkTransient mononuclear low-spin alkylperoxoiron(III) and oxoiron(IV) complexes that are relevant to the activation of dioxygen by nonheme iron enzymes have been generated from synthetic iron(II) complexes of neutral tetradentate (TPA) and pentadentate (N4Py, Bn-TPEN) ligands and structurally characterized by means of Fe K-edge X-ray absorption spectroscopy (XAS). Notable features obtained from fits of the EXAFS region are Fe-O bond lengths of 1.78 A for the alkylperoxoiron(III) intermediates and 1.65-1.68 A for the oxoiron(IV) intermediates, reflecting different strengths in the Fe-O ?? interactions. These differences are also observed in the intensities of the 1s-to-3d transitions in the XANES region, which increase from 4 units for the nearly octahedral iron(II) precursor to 9-15 units for the alkylperoxoiron(III) intermediates to 25-29 units for the oxoiron(IV) species.close939
Pretransplant Infusion of Donor B Cells Enhances Donor-Specific Skin Allograft Survival
Full text linkResponsible Artificial Intelligence as a Secret Ingredient for Digital Health: Bibliometric Analysis, Insights, and Research Directions
Full text linkDFT analysis of the electronic structure of Fe(IV) species active in nitrene transfer catalysis: influence of the coordination sphere
Full text linkSteric hindrance effect of the equatorial ligand on Fe(IV)O and Ru(IV)O complexes: a density functional study
Full text linkThe relations between sleep, time of physical activity, and time outdoors among adult women
Full text linkTheoretical study of cyclohexane hydroxylation by three possible isomers of [FeIV(O)(R-TPEN)]2+: does the pentadentate ligand wrapping around the metal center differently lead to the different stability and reactivity?
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