The last paper from Dr. Kerry Barnett's dissertation has been published in Inorganic Chemistry in collaboration with the Dixon Group. This paper provides a detailed structural analysis of the palladium complexes of trineopentylphosphine ligands using computational and experimental data. The highly flexible trineopentylphosphine ligand adopts a very sterically demanding conformation when coordinated to 1- or 2-coordinate palladium centers. Unusually, this very sterically demanding ligand is highly pyramidalized due to the low back-side strain of the neopentyl groups. When coordinated to a 3- or 4-coordinate palladium center, trineopentylphoshine adopts a less sterically demanding conformation.
A paper by Dr. Ethan Hu entitled, "Synthesis, Structural Characterization, and Coordination Chemistry of (Trineopentylphosphine)palladium(aryl)bromide Dimer Complexes ([(Np3P)Pd(Ar)Br]2)," was published in Inorganic Chemistry. Co-authors on the paper are, Monica Vasiliu, Deidra Gerlach, Fengrui Qu, Trent Stein, Dr. David Dixon, and Kevin Shaughnessy. The paper describes the structure of the trineopentylphosphine ligand in [(Np3P)Pd(Ar)Br]2 complexes as a function of the steric demand of the aryl group. The trineopentylphosphine is highly flexible allowing it to accommodate other sterically demanding ligands.
A review entitled, "Development of Palladium Precatalysts that Efficiently Generate LPd(0) Active Species," has been published in the Israel Journal of Chemistry. This article was an invited contribution for a special issue honoring John Hartwig and Stephen Buchwald on receiving the Wolf Prize in Chemistry.
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