| Autor: |
Reed CJ; Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , United States., Agapie T; Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , United States. |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of the American Chemical Society [J Am Chem Soc] 2019 Jun 19; Vol. 141 (24), pp. 9479-9484. Date of Electronic Publication: 2019 Jun 10. |
| DOI: |
10.1021/jacs.9b03157 |
| Abstrakt: |
Tetranuclear Fe clusters have been synthesized bearing a terminal Fe III -oxo center stabilized by hydrogen-bonding interactions from pendant ( tert-butylamino)pyrazolate ligands. This motif was supported in multiple Fe oxidation states, ranging from [Fe II 2 Fe III 2 ] to [Fe III 4 ]; two oxidation states were structurally characterized by single-crystal X-ray diffraction. The reactivity of the Fe III -oxo center in proton-coupled electron transfer with X-H (X = C, O) bonds of various strengths was studied in conjunction with analysis of thermodynamic square schemes of the cluster oxidation states. These results demonstrate the important role of distal metal centers in modulating the reactivity of a terminal metal-oxo. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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