Uranyl carboxyphosphonates that incorporate Cd(II)

Journal Article · Sun May 01 04:00:00 EDT 2011 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2011.03.026· OSTI ID:1386669

Alsobrook, Andrea N.; Alekseev, Evgeny V.; Depmeier, Wulf; Albrecht-Schmitt, Thomas E.

The hydrothermal treatment of UO3, Cd(CH3CO2)2·2H2O, and triethyl phosphonoacetate results in the formation of Cd2[(UO2)6(PO3CH2CO2)3O3(OH)(H2O)2]·16H2O (CdUPAA-1), [Cd3(UO2)6(PO3CH2CO2)6(H2O)13]·6H2O (CdUPAA-2), and Cd(H2O)2[(UO2)(PO3CH2CO2)(H2O)]2 (CdUPAA-3). CdUPAA-1 adopts a cubic three-dimensional structure constructed from planar uranyl oxide clusters containing both UO7 pentagonal bipyramids and UO8 hexagonal bipyramids that are linked by Cd(II) cations and phosphonoacetate to yield large cavities approximately 16 Å across that are filled with disordered water molecules. CdUPAA-2 forms a rhombohedral three-dimensional channel structure that is assembled from UO7 pentagonal bipyramids that are bridged by phosphonoacetate. CdUPAA-3 is layered with the hydrated Cd(II) cations incorporated directly into the layers linking one-dimensional uranyl phosphonate substructures together. In this structure, there are complex networks of hydrogen bonds that exist within the sheets, and also stitch the sheets together.

• Research Organization: Energy Frontier Research Centers (EFRC) (United States). Materials Science of Actinides (MSA)
• Sponsoring Organization: USDOE SC Office of Basic Energy Sciences (SC-22)
• DOE Contract Number: SC0001089
• OSTI ID: 1386669
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 5 Vol. 184; ISSN 0022-4596
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
nuclear (including radiation effects)
materials and chemistry by design
synthesis (novel materials)
synthesis (self-assembly)