Snapshots of dioxygen activation by copper: The structure of a 1:1 Cu/O2 adduct and its use in syntheses of asymmetric bis(μ-oxo) complexes

Nermeen W. Aboelella, Elizabeth A. Lewis, Anne M. Reynolds, William W. Brennessel, Christopher J. Cramer, William B. Tolman

Research output: Contribution to journalArticle

165 Scopus citations

Abstract

The X-ray structure of a 1:1 Cu/O2 adduct revealed side-on (η2) O2 coordination. Density functional calculations corroborated the structure, indicated a significant contribution of a Cu(III)-(O22-) resonance form, and provided insights into the key bonding interactions. Reaction of a 1:1 adduct supported by a slightly different β-diketiminate ligand with Cu(I) reagents resulted in the formation of novel asymmetric bis(μ-oxo) complexes that were identified by EPR, UV-vis, and Raman spectroscopy, as well as by an X-ray structure in one instance.

Original languageEnglish (US)
Pages (from-to)10660-10661
Number of pages2
JournalJournal of the American Chemical Society
Volume124
Issue number36
DOIs
StatePublished - Sep 11 2002

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