Photochemical activation of pincer-ligated phosphoranides: mechanistic insight for reduction of aryl halides
Year: 2025
Type: article
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 transformations and underscore the broader potential of main-group frameworks in light-driven redox chemistry.
Source: Chemical Science
DOI: 10.1039/d5sc06960b
Institutions: Centre National de la Recherche Scientifique, École Normale Supérieure - PSL, Sorbonne Université, Chimie Physique et Chimie du Vivant, Chimie ParisTech - PSL, Université Paris Sciences et Lettres, Chimie Biologique pour le Vivant, Institute of Chemistry for Life and Health Sciences, Institut Parisien de Chimie Moléculaire, Université Toulouse III - Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415824672