Ontology highlight
ABSTRACT:
SUBMITTER: Theisen RM
PROVIDER: S-EPMC4484572 | biostudies-literature | 2005 Mar
REPOSITORIES: biostudies-literature
Theisen Roslyn M RM Kovacs Julie A JA
Inorganic chemistry 20050301 5
Superoxide reduction by thiolate-ligated [FeII(SMe2N4(tren))]+ (1) involves two proton-dependent steps and a single peroxide intermediate, [FeIII(SMe2N4(tren))(OOH)]+ (2). An external proton donor is required, ruling out mechanisms involving H+ or H-atom abstraction from the ligand N-H. The initial protonation step affording 2 occurs with fairly basic proton donors (EtOH, MeOH, NH4+) in THF. More acidic proton donors are required to cleave the Fe-O(peroxide) bond in MeOH, and this occurs via a d ...[more]