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Your search keyword '"Palmer, Phillip D."' showing total 2 results
Start Over Author "Palmer, Phillip D." Journal journal of the american chemical society
2 results on '"Palmer, Phillip D."'

1. XAFS structural determination of Np(VII). Evidence for a trans dioxo cation under alkaline solution conditions

Author

Clark, David L., Conradson, Steven D., Neu, Mary P., Palmer, Phillip D., Runde, Wolfgang, and Tait, C. Drew

Subjects
Molecular structure -- Research, Solution (Chemistry) -- Research, Ions -- Research, Chemistry
Abstract

A study was conducted to determine the XAFS structure of Np(VII) under alkaline solution conditions. The findings indicate the presence of a trans dioxo ion in the Np(VII) species in alkaline solution. The presence of trans dioxo ions was observed in the amplitudes of the isolated EXAFS of the oxo shells. Several studies to determine the solid-state structure, number of equatorial ligands and solution dynamics are ongoing.

Published
1997

2. EXAFS studies of pentavalent neptunium carbonato complexes. Structural elucidation of the principal constituents of neptunium in groundwater environments

Author

Clark, David L., Conradson, Steven D., Ekberg, Scott A., Hess, Nancy J., Neu, Mary P., Palmer, Phillip D., Runde, Wolfgang, and Tait, C. Drew

Subjects
Extended X-ray absorption fine structure -- Evaluation, Actinide elements -- Research, Chemistry
Abstract

The actinide element neptunium (Np) presents a potent threat against the environment because it is highly soluble under typical groundwater conditions and has low sorption on common minerals. Carbonato complexes of pentavalent neptunium play a significant role in the transport of Np in natural aquatic environments. The molecular structures of pentavalent neptunium compounds are investigated.

Published
1996

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