Photochemical activation of pincer-ligated phosphoranides: mechanistic insight for reduction of aryl halides.

ABSTRACT: Pincer-ligated phosphoranides constitute a relatively underexplored subclass of main-group compounds whose distinctive structural and electronic properties are now attracting renewed interest. In this study, we report the synthesis, full characterization, and novel photoreactivity of O,N,O-pincer ligated phosphoranide anions. Upon visible-light irradiation, these species engage in single-electron transfer (SET) processes with various aryl halides, enabling the formation of C-P and C-C bonds. A combination of electrochemical studies and TD-DFT calculations supports a mechanism involving the formation of electron donor-acceptor (EDA) complexes, followed by light-induced SET and radical recombination. These findings introduce these phosphoranides as a versatile platform for photochemical tran

SUBMITTER: Escoude E 

PROVIDER: S-EPMC12599040 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature