Real-time observation of X-ray-induced intramolecular and interatomic electronic decay in CH₂I₂.

ABSTRACT: The increasing availability of X-ray free-electron lasers (XFELs) has catalyzed the development of single-object structural determination and of structural dynamics tracking in real-time. Disentangling the molecular-level reactions triggered by the interaction with an XFEL pulse is a fundamental step towards developing such applications. Here we report real-time observations of XFEL-induced electronic decay via short-lived transient electronic states in the diiodomethane molecule, using a femtosecond near-infrared probe laser. We determine the lifetimes of the transient states populated during the XFEL-induced Auger cascades and find that multiply charged iodine ions are issued from short-lived (∼20 fs) transient states, whereas the singly charged ones originate from significantly longer-l

SUBMITTER: Fukuzawa H 

PROVIDER: S-EPMC6522627 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature