title: Electrogenerated chemiluminescence from violanthrone.
abstract: Violanthrone, an emitter of exceptionally bright chemiluminescence, was examined in dimethylformamide solution to determine whether it also emits particularly bright electrogenerated chemiluminescence (ECL). The ECL measurements were carried out using a cycled potential which was applied to platinum electrodes. At the maximum sweep rate of 80 V s-1 available, the intensity of the violanthrone ECL was still increasing with sweep rate and was c. 56% of that from rubrene, a bright, commonly used emitter of ECL. Furthermore, assuming that the emission arises from radical anion-cation recombination, the sweep rate dependence showed that the least stable radical ion (probably the cation) decays with a half-life shorter than 0.2 s.
authors.affiliation: Department of Chemistry, University of Western Australia, Nedlands.
authors.forename: T I
authors.initials: TI
authors.lastname: Quickenden
authors.forename: K
authors.initials: K
authors.lastname: Hansongnern
mesh_terms: D001580:Benzopyrenes / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D004563:Electrochemistry; D008163:Luminescent Measurements; D009279:Naphthacenes / Q000737:chemistry; D010777:Photochemistry
chemical_list: D001580:Benzopyrenes; D004396:Coloring Agents; D009279:Naphthacenes; C095681:violanthrone; C045049:rubrene