Reactivity of a Pd(I)-Pd(I) dimer with O2: monohapto Pd superoxide and dipalladium peroxide in equilibrium

Rafael Huacuja; Daniel J Graham; Claudia M Fafard; Chun-Hsing Chen; Bruce M Foxman; David E Herbert; Glen Alliger; Christine M Thomas; Oleg V Ozerov

doi:10.1021/ja200346a

Reactivity of a Pd(I)-Pd(I) dimer with O2: monohapto Pd superoxide and dipalladium peroxide in equilibrium

J Am Chem Soc. 2011 Mar 23;133(11):3820-3. doi: 10.1021/ja200346a. Epub 2011 Feb 25.

Authors

Rafael Huacuja¹, Daniel J Graham, Claudia M Fafard, Chun-Hsing Chen, Bruce M Foxman, David E Herbert, Glen Alliger, Christine M Thomas, Oleg V Ozerov

Affiliation

¹ Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States.

PMID: 21351769
DOI: 10.1021/ja200346a

Abstract

The Pd(I)-Pd(I) dimer [((F)PNP)Pd-](2) reacts with O(2) upon exposure to light to produce either the superoxide ((F)PNP)PdO(2) or the peroxide [((F)PNP)PdO-](2), which exist in equilibrium with free O(2). Both complexes contain square-planar Pd(II) centers. The unpaired electron density in ((F)PNP)PdO(2) is localized on the superoxide ligand.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Dimerization
Models, Molecular
Oxygen / chemistry*
Palladium / chemistry*
Peroxides / chemistry*
Superoxides / chemistry*

Substances

Peroxides
Superoxides
Palladium
Oxygen