Insertion of molecular oxygen into a palladium(II) hydride bond.
Insertion of molecular oxygen into a palladium(II) hydride bond to form an (eta1-hydroperoxo)palladium(II) complex is reported. The hydroperoxo palladium(II) product has been crystallographically characterized. A second-order rate law (first-order in palladium and first-order in oxygen) is observed for the reaction and a large kinetic isotope effect implicates Pd-H bond cleavage in the rate-determining step. The results of studies with radical inhibitors and light suggest that the reaction does not proceed by a radical chain mechanism.
Department of Chemistry, University of Washington, Seattle, 98195-1700, USA.
Melanie C
MC
Denney
Nicole A
NA
Smythe
Kara L
KL
Cetto
Richard A
RA
Kemp
Karen I
KI
Goldberg