High-Affinity Proton Donors Promote Proton-Coupled Electron Transfer by Samarium Diiodide

TitleHigh-Affinity Proton Donors Promote Proton-Coupled Electron Transfer by Samarium Diiodide
Publication TypeJournal Article
Year of Publication2016
AuthorsChciuk TV, Anderson, Jr. WR, Flowers, II RA
JournalAngewandte Chemie International Edition
Volume128
Issue20
Start Page6137
Pagination3
Date Published04/2016
Abstract

The relationship between proton-​donor affinity for SmII ions and the redn. of two substrates (anthracene and benzyl chloride) was examd. A combination of spectroscopic, thermochem., and kinetic studies show that only those proton donors that coordinate or chelate strongly to SmII promote anthracene redn. through a PCET process. These studies demonstrate that the combination of SmII ions and water does not provide a unique reagent system for formal hydrogen atom transfer to substrates.

DOI10.1002/anie.201601474