Covalent palladium–zinc bonds and their reactivity
作者:Claudia M. Fafard、Chun-Hsing Chen、Bruce M. Foxman、Oleg V. Ozerov
DOI:10.1039/b709364k
日期:——
Photolysis of (FPNP)PdâEt in the presence of Et2Zn leads to the formation of (FPNP)PdâZnâPd(PNPF), the first example of a compound with a covalent PdâZn bond.
Addition of Ammonia, Water, and Dihydrogen Across a Single Pd−Pd Bond
作者:Claudia M. Fafard、Debashis Adhikari、Bruce M. Foxman、Daniel J. Mindiola、Oleg V. Ozerov
DOI:10.1021/ja0731571
日期:2007.8.1
photochemical conversion to a dimeric (PNP)Pd−Pd(PNP) complex with a single Pd−Pd bond. Dissociation of the dimer into monomeric (PNP)Pd species is kinetically accessible thermally and photochemically. (PNP)Pd−Pd(PNP) reacts with ammonia, water, and dihydrogen by adding the H−X bond of the substrate (X = NH2, OH, H) across the Pd−Pd bond. For ammonia, this represents a rare example of conversion of NH3
Reactivity of a Pd(I)−Pd(I) Dimer with O<sub>2</sub>: Monohapto Pd Superoxide and Dipalladium Peroxide in Equilibrium
作者: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
日期:2011.3.23
The Pd(I)-Pd(I) dimer [((PNP)-P-F)Pd-](2) reacts with O-2 upon exposure to light to produce either the superoxide ((PNP)-P-F)PdO2 or the peroxide [((PNP)-P-F)PdO-] 2, which exist in equilibrium with free O-2. Both complexes contain square-planar Pd(II) centers. The unpaired electron density in ((PNP)-P-F)PdO2 is localized on the superoxide ligand.