IR Spectroscopic Characterization of Methane Adsorption on Copper Clusters Cu_n⁺ (n = 2-4).

ABSTRACT: The interaction of CH₄ with cationic copper clusters has been studied with infrared-multiple photon dissociation (IRMPD) spectroscopy. Cu_n⁺ (n = 2-4) formed by laser ablation were reacted with CH₄. The formed complexes were irradiated with the IR light of the free-electron laser for intracavity experiments (FELICE), and the fragments were mass-analyzed with a reflectron time-of-flight mass spectrometer. The structures of the Cu_n⁺-CH₄ complexes are assigned on the basis of comparison between the resulting IRMPD spectra to spectra of different isomers calculated with density functional theory (DFT). For all sizes n, the structure found is one with molecularly adsorbed CH₄. Only

SUBMITTER: Lushchikova OV 

PROVIDER: S-EPMC9354255 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature