title: Carbon-centered radicals add reversibly to histidine--implications.
abstract: Carbon-centered radicals of alcohols commonly used as hydroxyl radical scavengers (MeOH, EtOH, i-PrOH and t-BuOH) add reversibly to histidine with equilibrium constants up to 3 × 10(3) M(-1) and rate constants on the order of 10(9) M(-1) s(-1). Similar equilibria may compromise determinations of one-electron (radical) electrode potentials.
authors.affiliation: Laboratorium für Anorganische Chemie, Departement für Chemie und Angewandte Biowissenschaften, ETH Zürich, Vladimir-Prelog Weg 2, CH-8093 Zürich, Switzerland. nauser@ethz.ch.
authors.forename: Thomas
authors.initials: T
authors.lastname: Nauser
authors.forename: Anna
authors.initials: A
authors.lastname: Carreras
mesh_terms: D000438:Alcohols / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D005609:Free Radicals / Q000737:chemistry*; D006639:Histidine / Q000737:chemistry*; D010084:Oxidation-Reduction
chemical_list: D000438:Alcohols; D005609:Free Radicals; D006639:Histidine; D002244:Carbon