Gas-phase synthesis of anthracene and phenanthrene via radical-radical reaction induced ring expansions Ring expansion mechanisms via radical-radical reactions enhance understanding of carbon evolution in extreme environments.

🚀✨ From the lab to the stars: Using PEPICO spectroscopy, we followed CH₃• reacting with the fluorenyl radical to form PAHs like anthracene & phenanthrene—crucial steps in cosmic #PAH formation.
@UHMRxnDynamics @psich.bsky.social
🔗 doi.org/10.1126/scia...
#AstroChem #PEPICO #Spectroscopy #PAHs