Heterobimetallic Complexes with M^III-(μ-OH)-M^II Cores (M^III = Fe, Mn, Ga; M^II = Ca, Sr, and Ba): Structural, Kinetic, and Redox Properties.

ABSTRACT: The effects of redox-inactive metal ions on dioxygen activation were explored using a new Fe^II complex containing a tripodal ligand with 3 sulfonamido groups. This iron complex exhibited a faster initial rate for the reduction of O₂ than its Mn^II analog. Increases in initial rates were also observed in the presence of group 2 metal ions for both the Fe^II and Mn^II complexes, which followed the trend NMe₄⁺ < Ba^II < Ca^II = Sr^II. These studies led to the isolation of heterobimetallic complexes containing Fe^III-(μ-OH)-M^II cores (M^II = Ca, Sr, and Ba) and one with a [Sr^II(OH)Mn^III]⁺ motif. The analogous [Ca^II</

SUBMITTER: Park YJ 

PROVIDER: S-EPMC3777273 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature