Catalytic Nitrous Oxide Reduction with H₂ Mediated by Pincer Ir Complexes.

ABSTRACT: Reduction of nitrous oxide (N₂O) with H₂ to N₂ and water is an attractive process for the decomposition of this greenhouse gas to environmentally benign species. Herein, a series of iridium complexes based on proton-responsive pincer ligands (1-4) are shown to catalyze the hydrogenation of N₂O under mild conditions (2 bar H₂/N₂O (1:1), 30 °C). Among the tested catalysts, the Ir complex 4, based on a lutidine-derived CNP pincer ligand having nonequivalent phosphine and N-heterocyclic carbene (NHC) side donors, gave rise to the highest catalytic activity (turnover frequency (TOF) = 11.9 h^-1 at 30 °C, and 16.4 h^-1 at 55 °C). Insights into the reaction mechanism with 4 have been

SUBMITTER: Ortega-Lepe I 

PROVIDER: S-EPMC10441893 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature