title: p-Benzosemiquinone radical anion on silver nanoparticles in water.
abstract: This communication reports the SERS observation of p-benzosemiquinone radical anion, produced on reduction of p-benzoquinone by Ag nanoparticles at the metal-water interface. The species is positively identified by comparison of the SERS spectrum with the resonance Raman spectra of the radical anion in aqueous solution. This is a rare SERS observation of a radical intermediate formed by surface reaction on nanosize silver particles in solution.
authors.affiliation: Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, USA. tripathi.1@nd.edu
authors.forename: G N R
authors.initials: GN
authors.lastname: Tripathi
mesh_terms: D000838:Anions; D016227:Benzoquinones / Q000737:chemistry*; D005609:Free Radicals / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D012996:Solutions; D013059:Spectrum Analysis, Raman; D014867:Water / Q000737:chemistry
chemical_list: D000838:Anions; D016227:Benzoquinones; D005609:Free Radicals; D012996:Solutions; D014867:Water; C025232:semiquinone radicals; D012834:Silver