Electronic energy transfer ionization in naphthalene-CO₂ clusters reveals excited states of dry ice.

ABSTRACT: Electronic energy relaxation and transfer shapes the photochemistry in molecules and materials that are exposed to UV radiation in areas ranging from astrochemistry to biology. The interaction between CO₂ and polycyclic aromatic hydrocarbons (PAHs) specifically, is of paramount interest in astrochemically relevant ices, the transition to renewable energy and the development of green chemistry. We investigate the vacuum UV excitation of the naphthalene-CO₂ complex and observe excited states of CO₂ through a newly identified molecular electronic energy transfer ionization mechanism. We evaluate the spectral development upon cluster growth with time-dependent density functional theory and show that the photoionization spectrum of naphthalene-CO₂ clo

SUBMITTER: Lemmens AK 

PROVIDER: S-EPMC11351047 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature