title: Spin-polarized peroxyl radical adducts formed from the addition of oxygen to amino acid radicals.
abstract: [Structure: see text] Peroxyl radicals formed from the addition of oxygen to carbon radicals of N-acetyl glycine, serine, and diglycine are directly observed at room temperature via time-resolved EPR spectroscopy. Isotopic labeling confirms the identity of the N-acetyl glycine and diglycine peroxyl analogues. The peroxyl radicals show unusually strong chemically induced electron spin polarization which is discussed in terms of the radical pair mechanism and spin polarization transfer processes.
authors.affiliation: Venable and Kenan Laboratories, Department of Chemistry, CB#3290, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
authors.forename: Ryan C
authors.initials: RC
authors.lastname: White
authors.forename: Malcolm D E
authors.initials: MD
authors.lastname: Forbes
mesh_terms: D000596:Amino Acids / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D010100:Oxygen / Q000737:chemistry*; D010545:Peroxides / Q000737:chemistry*
chemical_list: D000596:Amino Acids; D010545:Peroxides; C049375:perhydroxyl radical; D010100:Oxygen