Mechanisms of the Cu(I)-Catalyzed Intermolecular Photocycloaddition Reaction Revealed by Optical and X-ray Transient Absorption Spectroscopies
作者:Gethmini K. Jayasekara、Cali Antolini、Melissa A. Smith、Danielle J. Jacoby、Jacqueline Escolastico、Nathan Girard、Benjamin T. Young、Dugan Hayes
DOI:10.1021/jacs.1c07282
日期:2021.11.24
interactions. We have used a combination of optical and X-ray transient absorption spectroscopies to elucidate the mechanism of the Cu(I)-catalyzed intermolecular photocycloaddition reaction using norbornene and cyclohexene as model substrates. We find that for norbornene the reaction proceeds through an initial metal-to-ligand charge transfer (MLCT) state that persists for 18 ns before the metal returns