Evidence for diffusing atomic oxygen uncovered by separating reactants with a semi-permeable nanocapsule barrier. Issue 12 (17th December 2018)

• Record Type: Journal Article
• Authors: Omlid, Sara M.; Dergunov, Sergey A.; Isor, Ankita; Sulkowski, Kathryn L.; Petroff, John T.; Pinkhassik, Eugene; McCulla, Ryan D.
• Is Part Of: Chemical communications. Volume 55:Issue 12(2019)
• Page Start: 1706
• Page End: 1709
• Publication Date: 2018-12-17
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c8cc06715e
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Ground-state atomic oxygen [O( 3 P)] is an oxidant whose formation in solution was proposed but never proven. Abstract : Ground-state atomic oxygen [O( 3 P)] is an oxidant whose formation in solution was proposed but never proven. Polymer nanocapsules were used to physically separate dibenzothiophene S-oxide (DBTO), a source of O( 3 P), from an O( 3 P)-accepting molecule. Irradiation of polymer nanocapsules loaded with DBTO resulted in oxidation of the O( 3 P)-acceptor placed outside nanocapsules. The results rule out a direct oxygen atom transfer mechanism and are consistent with freely diffusing O( 3 P) as the oxidant.