RT Journal Article
T1 Cooperative hydrogenation catalysis at a constrained gallylene-nickel(0) interface
A1 Kalkuhl, Till
A1 Fernández López, Israel
A1 Hadlington, Terrance
AB The discovery of unique mechanisms in 3d metal catalysis is of paramount importance in utilizing these Earth-abundant metals in place of scarce precious metals. Inspired by the Horiuti-Polanyi mechanism atplay in heterogeneous hydrogenation catalysts, we describe a bimetallic molecular catalyst that can selectively semi-hydrogenate alkynes via a ligand-to-substrate hydride transfer mechanism. This mimics established heterogeneous mechanisms in which remote surface-bound hydride ligands undergo a similar reactive process. This is achieved through the development of a chelate-constrained gallium(I) ligand, which operates in concert with nickel(0) to (reversibly) cleave H2, generating a [GaNi] 1,2-dihydride complex that is found to be the resting state in the catalytic process. This discovery takes steps toward utilizing non-innocent low-valent group 13 centers in effective cooperative catalysis, opening new mechanistic pathways that may aid in employing Earth-abundant metals in key catalytic transformations
PB Cell-Elsevier
YR 2025
FD 2025
LK https://hdl.handle.net/20.500.14352/120252
UL https://hdl.handle.net/20.500.14352/120252
LA eng
NO Kalkuhl, Till L., et al. «Cooperative hydrogenation catalysis at a constrained gallylene-nickel(0) interface». Chem, vol. 11, n.o 4, abril de 2025, p. 102349. ScienceDirect, https://doi.org/10.1016/j.chempr.2024.10.016.
NO Fondo de la industria química (FCI)
NO Universidad de Munich
DS Docta Complutense
RD 22 ene 2026