Long-Lived Terphenyl Radical Anion Super-Reductant for Photocatalysis Formed via Blue-to-UV Upconversion with Fully Resolved Mechanism.

ABSTRACT: Biphotonic mechanisms with visible light excitation can generate highly reactive species for thermodynamically challenging reactions. Particularly prominent is the consecutive photoinduced electron transfer mechanism, in which excited radical ions are the presumed key catalytically active species. They benefit from extremely high redox powers but suffer from excited state lifetimes in the low picosecond range and are susceptible to photodegradation. This makes mechanistic elucidation difficult and sometimes leads to debate around the identity of the true catalytically active species. In this study, we address these challenges by presenting a fully resolved mechanism, in which a spectroscopically observable and quantifiable ground state p-terphenyl radical anion is generated through

SUBMITTER: Wagner DS 

PROVIDER: S-EPMC12933312 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature