An Iron(III) Superoxide Corrole from Iron(II) and Dioxygen.

ABSTRACT: A new structurally characterized ferrous corrole [Fe^II (ttppc)]^- (1) binds one equivalent of dioxygen to form [Fe^III (O₂ ^-. )(ttppc)]^- (2). This complex exhibits a ^16/18 O₂ -isotope sensitive ν(O-O) stretch at 1128 cm^-1 concomitantly with a single ν(Fe-O₂ ) at 555 cm^-1 , indicating it is an η¹ -superoxo ("end-on") iron(III) complex. Complex 2 is the first well characterized Fe-O₂ corrole, and mediates the following biologically relevant oxidation reactions: dioxygenation of an indole derivative, and H-atom abstraction from an activated O-H bond.

SUBMITTER: Sacramento JJD 

PROVIDER: S-EPMC8789326 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature