Journal
MINERALOGICAL MAGAZINE
Volume 75, Issue 1, Pages 1-25Publisher
MINERALOGICAL SOC
DOI: 10.1180/minmag.2011.075.1.1
Keywords
bipyramid; nanoscale; uranium
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Funding
- 'Materials Science of Actinides Center'
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001089]
- National Science Foundation Environmental Molecular Science Institute at the University of Notre Dame [EAR02-21966]
- Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy [DE-FG02-07ER15880]
- Energy Frontier Research Center
- University of Notre Dame
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Taking advantage of the bent uranyl-peroxide-uranyl interaction found in studtite, 26 nanoscale clusters have been synthesized using uranyl hexagonal bipyramids. Sixteen of these clusters are built from uranyl hexagonal bipyramids only. Eight contain pyrophosphate groups that bridge between uranyl polyhedra, and two contain oxalate groups that adopt a similar structural role. These clusters contain from 20 to 60 uranyl polyhedra and have diameters in the range similar to 1.5 to 3 nm. All spontaneously self-assemble in aqueous solution under ambient conditions.
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