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Type: Artigo de periódico
Title: Positron Annihilation In Triphenylphosphine Oxide Complexes: Positronium Inhibition Mechanism Involving Excitation Of Charge Transfer States
Author: Faustino W.M.
de Sa G.F.
Malta O.L.
Magalhaes W.F.
Machado J.C.
Abstract: Positronium formation in triphenylphosphine oxide and its lanthanide and hydrogen peroxide complexes have been characterized. The low probability of positronium formation observed has been attributed to a mechanism involving competition between charge transfer at large distances induced by the positron-molecular electron interaction and positronium formation during positron molecule scattering. The molecular site responsible for positronium formation has been identified. © 2008 Elsevier B.V. All rights reserved.
Citation: Chemical Physics Letters. , v. 452, n. 4-6, p. 249 - 252, 2008.
Rights: fechado
Identifier DOI: 10.1016/j.cplett.2007.12.060
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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