title: Higher order speciation effects on plutonium L(3) X-ray absorption near edge spectra.
abstract: Pu L(3) X-ray near edge absorption spectra for Pu(0-VII) are reported for more than 60 chalcogenides, chlorides, hydrates, hydroxides, nitrates, carbonates, oxy-hydroxides, and other compounds both as solids and in solution, and substituted in zirconolite, perovskite, and borosilicate glass. This large database extends the known correlations between the energy and shape of these spectra from the usual association of the XANES with valence and site symmetry to higher order chemical effects. Because of the large number of compounds of these different types, a number of novel and unexpected behaviors are observed, such as effects resulting from the medium and disorder that can be as large as those from valence.
authors.affiliation: Materials Science and Technology Division, Seaborg Institute for Transactinum Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. conradson@lanl.gov
authors.forename: Steven D
authors.initials: SD
authors.lastname: Conradson
authors.forename: Kent D
authors.initials: KD
authors.lastname: Abney
authors.forename: Bruce D
authors.initials: BD
authors.lastname: Begg
authors.forename: Erik D
authors.initials: ED
authors.lastname: Brady
authors.forename: David L
authors.initials: DL
authors.lastname: Clark
authors.forename: Christophe
authors.initials: C
authors.lastname: den Auwer
authors.forename: Mei
authors.initials: M
authors.lastname: Ding
authors.forename: Peter K
authors.initials: PK
authors.lastname: Dorhout
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Espinosa-Faller
authors.forename: Pamela L
authors.initials: PL
authors.lastname: Gordon
authors.forename: Richard G
authors.initials: RG
authors.lastname: Haire
authors.forename: Nancy J
authors.initials: NJ
authors.lastname: Hess
authors.forename: Ryan F
authors.initials: RF
authors.lastname: Hess
authors.forename: D Webster
authors.initials: DW
authors.lastname: Keogh
authors.forename: Gerard H
authors.initials: GH
authors.lastname: Lander
authors.forename: Anthony J
authors.initials: AJ
authors.lastname: Lupinetti
authors.forename: Luis A
authors.initials: LA
authors.lastname: Morales
authors.forename: Mary P
authors.initials: MP
authors.lastname: Neu
authors.forename: Phillip D
authors.initials: PD
authors.lastname: Palmer
authors.forename: Patricia
authors.initials: P
authors.lastname: Paviet-Hartmann
authors.forename: Sean D
authors.initials: SD
authors.lastname: Reilly
authors.forename: Wolfgang H
authors.initials: WH
authors.lastname: Runde
authors.forename: C Drew
authors.initials: CD
authors.lastname: Tait
authors.forename: D Kirk
authors.initials: DK
authors.lastname: Veirs
authors.forename: Franck
authors.initials: F
authors.lastname: Wastin