Cerium Photocatalyst in Action: Structural Dynamics in the Presence of Substrate Visualized via Time-Resolved X-ray Liquidography.

ABSTRACT: [Ce(III)Cl₆]^3-, with its earth-abundant metal element, is a promising photocatalyst facilitating carbon-halogen bond activation. Still, the structure of the reaction intermediate has yet to be explored. Here, we applied time-resolved X-ray liquidography (TRXL), which allows for direct observation of the structural details of reaction intermediates, to investigate the photocatalytic reaction of [Ce(III)Cl₆]^3-. Structural analysis of the TRXL data revealed that the excited state of [Ce(III)Cl₆]^3- has Ce-Cl bonds that are shorter than those of the ground state and that the Ce-Cl bond further contracts upon oxidation. In addition, this study represents the first application of TRXL to both photocatalyst-only and photocatalyst-an

SUBMITTER: Lee Y 

PROVIDER: S-EPMC10623567 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature