Higher order speciation effects on plutonium L(3) X-ray absorption near edge spectra.
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.
Conradson
Steven D
SD
Materials Science and Technology Division, Seaborg Institute for Transactinum Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. conradson@lanl.gov
Abney
Kent D
KD
Begg
Bruce D
BD
Brady
Erik D
ED
Clark
David L
DL
den Auwer
Christophe
C
Ding
Mei
M
Dorhout
Peter K
PK
Espinosa-Faller
Francisco J
FJ
Gordon
Pamela L
PL
Haire
Richard G
RG
Hess
Nancy J
NJ
Hess
Ryan F
RF
Keogh
D Webster
DW
Lander
Gerard H
GH
Lupinetti
Anthony J
AJ
Morales
Luis A
LA
Neu
Mary P
MP
Palmer
Phillip D
PD
Paviet-Hartmann
Patricia
P
Reilly
Sean D
SD
Runde
Wolfgang H
WH
Tait
C Drew
CD
Veirs
D Kirk
DK
Wastin
Franck
F