Control of Conical Intersection Dynamics in CF₃I Photodissociation via Halogen Bonding.

ABSTRACT: The dynamics of conical intersections are critical in governing the diverse pathways of chemical reactions, especially in photoexcited polyatomic systems. However, the systematic control of conical intersection dynamics remains a formidable challenge in reaction dynamics. Here, we demonstrate that halogen bonding, a key type of noncovalent interaction between halogenated molecules and electron-rich species, can control the conical intersection dynamics of halogenated compounds. Using time-sliced ion velocity map imaging with high resolution, we investigate the ultraviolet photodissociation dynamics of CF₃I upon interaction with N₂, CO, and C₂H₄ in supersonic molecular beams. We observe significant changes in the speed and angular distributions of

SUBMITTER: Yan D 

PROVIDER: S-EPMC12648343 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature