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
- 16 August 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 124 (36), 10660-10661
- https://doi.org/10.1021/ja027164v
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.Keywords
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