title: Anthralin: primary products of its redox reactions.
abstract: One-electron reduction significantly enhances the ability of anthralin, 1, to act as a hydrogen atom donor. On annealing of an MTHF glass in which the radical anion of anthralin, 1*-, is generated radiolytically, this species decays mainly by loss of H* to give the anthralyl anion, 2- . On the other hand, radicals formed on radiolysis of matrices that are suitable for the generation of radical anions or cations are capable to abstract H* from anthralin to give the anthralyl radical, 2* . Both 2- and 2* are obtained simultaneously by mesolytic cleavage of the radical anion of the anthralin dimer. Contrary to general assumptions, the anthralyl radical is found to be much more reactive toward oxygen than the anion. All intermediates are characterized spectroscopically and by reference to quantum chemical calculations. Attempts to generate the radical cation of anthralin by X-irradiation of an Ar matrix containing anthralin led also to significant formation of its radical anion, i.e., anthralin acts apparently as an efficient electron trap in such experiments.
authors.affiliation: Institute of Applied Radiation Chemistry, Technical University, 90-924 Lodz, Poland.
authors.forename: Malgorzata
authors.initials: M
authors.lastname: Czerwinska
authors.forename: Adam
authors.initials: A
authors.lastname: Sikora
authors.forename: Piotr
authors.initials: P
authors.lastname: Szajerski
authors.forename: Jacek
authors.initials: J
authors.lastname: Zielonka
authors.forename: Jan
authors.initials: J
authors.lastname: Adamus
authors.forename: Andrzej
authors.initials: A
authors.lastname: Marcinek
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Piech
authors.forename: Pawel
authors.initials: P
authors.lastname: Bednarek
authors.forename: Thomas
authors.initials: T
authors.lastname: Bally
mesh_terms: D000838:Anions / Q000737:chemistry; D000875:Anthralin / Q000737:chemistry*; D002412:Cations / Q000737:chemistry; D004583:Electrons; D005609:Free Radicals / Q000737:chemistry; D015394:Molecular Structure; D010084:Oxidation-Reduction; D013997:Time Factors
chemical_list: D000838:Anions; D002412:Cations; D005609:Free Radicals; D000875:Anthralin