Direct Evidence for Oxygen-Atom Exchange between Nonheme Oxoiron(IV) Complexes and Isotopically Labeled Water

Direct Evidence for Oxygen-Atom Exchange between Nonheme Oxoiron(IV) Complexes and Isotopically Labeled Water

Rates of exchange: Evidence that nonheme oxoiron(IV) complexes exchange their oxygen atoms with H218O was obtained for the first time, by monitoring electrospray ionization mass spectral changes of the oxoiron(IV) species. The oxygen‐atom exchange depended markedly on the amounts of H218O present an...

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Veröffentlicht in:Angewandte Chemie International Edition 2004-04, Vol.43 (18), p.2417-2420
Hauptverfasser: Seo, Mi Sook, In, Jun-Hee, Kim, Sun Ok, Oh, Na Young, Hong, Jongki, Kim, Jinheung, Que Jr, Lawrence, Nam, Wonwoo
Format: Artikel
Sprache:eng
Schlagworte:
enzyme models
iron
oxidation
oxo ligands
oxygen
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Zusammenfassung:Rates of exchange: Evidence that nonheme oxoiron(IV) complexes exchange their oxygen atoms with H218O was obtained for the first time, by monitoring electrospray ionization mass spectral changes of the oxoiron(IV) species. The oxygen‐atom exchange depended markedly on the amounts of H218O present and reaction temperatures but not on the presence of trans axial ligand (see scheme).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200353497