Higher Order Speciation Effects on Plutonium L3 X-ray Absorption Near Edge Spectra
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- 作者：Steven D. Conradson ; Kent D. Abney ; Bruce D. Begg ; Erik D. Brady ; David L. Clark ; Christophe den Auwer ; Mei Ding ; Peter K. Dorhout ; Francisco J. Espinosa-Faller ; Pamela L. Gordon ; Richard G. Haire ; Na
- 刊名：Inorganic Chemistry
- 出版年：2004
- 出版时间：January 12, 2004
- 年：2004
- 卷：43
- 期：1
- 页码：116 - 131
- 全文大小：591K
- 年卷期：v.43,no.1(January 12, 2004)
- ISSN：1520-510X
文摘
Pu L3 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 correlationsbetween the energy and shape of these spectra from the usual association of the XANES with valence and sitesymmetry 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 disorderthat can be as large as those from valence.