Jonathan Kuo

Net Oxidative Addition of H2 to {MII}2+ (M = Pd, Pt) by Heterolysis and Protic Rebound Electrophilic transition metal complexes like {MII(EtXantphos)2}2+ (MII = PdII, PtII) heterolyze H2 into a hydride-associated electrophile {H–MII(EtXantphos)2}+ and a proton, which typically associates to an added base (or basic ligand). For {H–MII(EtXantphos)2}+, the metal can be the most basic site in the system, which results in a product that is indistinguishable from oxidative addition {(H)2MIV(EtXantphos)2}2+. By considering the kinetics and thermodynamics of each elementary step – initial heterolysis, followed by a subsequent return of the heterolyzed proton – we suggest that oxidative addition products may be underrepresented tautomers in heterolytic pathways. The gained understanding was used to characterize the first (di)hydride of PdIV, generated by formal oxidative addition of H2 to PdII.

Excited to share our latest work out in
@jacs.acspublications.org ! Building off previous observations that oxidative additions to electrophilic metals might be a little different... including evidence for the first Pd(IV)-dihydride.
@pennstatechemistry.bsky.social
pubs.acs.org/doi/full/10....

23.06.2025 12:56 — 👍 13    🔁 4    💬 1    📌 0

Just some great views visiting University of Washington and University of Oregon chemistry this week! Excited to get back to state college, though 😇

01.02.2025 16:22 — 👍 2    🔁 0    💬 0    📌 0

It was really a fantastic talk Professor. Hoping to see you soon again in India sometime! @jonathanlkuo.bsky.social

09.01.2025 12:33 — 👍 1    🔁 1    💬 0    📌 0

Shapeshifting Ligands Mask Lewis Acidity of Dicationic Palladium(II) Supporting ligands limit the degree of electrophilic activation for any substrate because they also reduce the Lewis acidity of the transition metal ion. Here, we temporarily mask the Lewis acidity of...

first post on bsky is also to share our first published work, now online at ACS Catalysis!

Heroic effort by graduate student Karli Sipps. And many thanks to computational support by colleagues at @pennstatechemistry.bsky.social Wyatt Gibbs and Elvira Sayfutyrova

pubs.acs.org/doi/full/10....

22.11.2024 12:43 — 👍 18    🔁 0    💬 1    📌 2