Ultrafast structural dynamics of carbon-carbon single-bond rotation in transient radical species at non-equilibrium.

ABSTRACT: Bond rotation is an important phenomenon governing the fate of reactions. In particular, heterogeneously substituted ethane derivatives provide distinct structural conformations around the bond, empowering them as ideal systems for studying the rotation along carbon-containing single bonds. However, structural dynamics of ultrafast single-bond rotation, especially along C-C• bonds, have remained elusive as tracking the detailed changes in structural parameters during the rotational isomerization is challenging with conventional spectroscopic tools. Here, we employ femtosecond time-resolved X-ray liquidography to visualize the rotational isomerization between anti and gauche conformers of tetrafluoroiodoethyl radical (C₂F₄I•) and 1,2-tetrafluorodiiodoethane (C₂

SUBMITTER: Lee S 

PROVIDER: S-EPMC11861307 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature