Counterintuitive Photochemistry of an Isolated Acridinyl Radical: ConPET via Preassembly, Solvated Electrons or a Long-Lived Excited State?

ABSTRACT: Photoredox chemistry has seen a dramatic rise in popularity in recent years, but mechanistic understanding has persistently lagged behind reaction development itself. This is particularly true for the emerging area of consecutive photoinduced electron transfer (conPET), which has attracted both great interest due to its ability to activate inert substrates selectively and under mild conditions and continuing controversy over its mechanistic feasibility. We describe herein the isolation of the key radical intermediate state of an acridinium-based conPET catalyst and detailed investigations of its photochemistry by a suite of (photo)reactivity, photoluminescence and transient absorption techniques, supported by computational studies. We observe strong wavelength and solvent dependencies in t

SUBMITTER: Horsewill SJ 

PROVIDER: S-EPMC12363617 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature