title: Preparation and characterization of persistent maltose-conjugated triphenylmethyl radicals.
abstract: The condensation reaction of D-maltose to free radicals of the series of tris(2,4,6-trichlorophenyl)methyl (TTM) and tris(perchlorophenyl)methyl (PTM) has been described for the first time. The new persistent radicals 1 and 2 are very stable and have been characterized by EPR. Their cyclic voltammograms show a quasi-reversible process in the cathode, being reduced to the corresponding anions, with redox potentials a little lower than those of TTM and PTM, respectively. Their oxidant activity is in close relation with their reduction potentials. Therefore, while 2 is reduced by ascorbic acid, 1 remains unaltered.
authors.affiliation: Departament de Química Biològica i Modelització Molecular, Institut de Química Avançada de Catalunya (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
authors.forename: Juan Antonio
authors.initials: JA
authors.lastname: Mesa
authors.forename: Amado
authors.initials: A
authors.lastname: Velázquez-Palenzuela
authors.forename: Enric
authors.initials: E
authors.lastname: Brillas
authors.forename: Josep
authors.initials: J
authors.lastname: Coll
authors.forename: Josep Lluís
authors.initials: JL
authors.lastname: Torres
authors.forename: Luis
authors.initials: L
authors.lastname: Juliá
mesh_terms: D000838:Anions / Q000737:chemistry; D001205:Ascorbic Acid / Q000737:chemistry; D060326:Chemistry Techniques, Synthetic; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals / Q000737:chemistry; D008320:Maltose / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction; D012995:Solubility; D013730:Terphenyl Compounds / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D000838:Anions; D005609:Free Radicals; D013730:Terphenyl Compounds; D008320:Maltose; D001205:Ascorbic Acid