Single-Electron Transfer in Frustrated Lewis Pair Chemistry.

ABSTRACT: Frustrated Lewis pairs (FLPs) are well known for their ability to activate small molecules. Recent reports of radical formation within such systems indicate single-electron transfer (SET) could play an important role in their chemistry. Herein, we investigate radical formation upon reacting FLP systems with dihydrogen, triphenyltin hydride, or tetrachloro-1,4-benzoquinone (TCQ) both experimentally and computationally to determine the nature of the single-electron transfer (SET) events; that is, being direct SET to B(C₆ F₅ )₃ or not. The reactions of H₂ and Ph₃ SnH with archetypal P/B FLP systems do not proceed via a radical mechanism. In contrast, reaction with TCQ proceeds via SET, which is only feasible by Lewis acid coordination to

SUBMITTER: Holtrop F 

PROVIDER: S-EPMC7756365 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature