Reversible Scavenging of Dioxygen from Air by a Copper Complex.

ABSTRACT: We report that exposing the dipyrrin complex (^EMindL)Cu(N₂) to air affords rapid, quantitative uptake of O₂ in either solution or the solid-state to yield (^EMindL)Cu(O₂). The air and thermal stability of (^EMindL)Cu(O₂) is unparalleled in molecular copper-dioxygen coordination chemistry, attributable to the ligand flanking groups which preclude the [Cu(O₂)]¹⁺ core from degradation. Despite the apparent stability of (^EMindL)Cu(O₂), dioxygen binding is reversible over multiple cycles with competitive solvent exchange, thermal cycling, and redox manipulations. Additionally, rapid, catalytic oxidation of 1,2-diphenylhydrazine to azoarene with the generation of hydrogen peroxi

SUBMITTER: Carsch KM 

PROVIDER: S-EPMC9351470 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature