Discipline: Chemistry and Chemical Sciences
Subcategory: Chemistry (not Biochemistry)
Dawanya Burgess - Claflin University
Co-Author(s): Hongxia Zhang, Claflin University, Orangeburg, SC; Jie Ling, Claflin University, Orangeburg, SC
Abstract: Six cage clusters containing 18 to 54 uranyl ions, as well as 6 to 27 pyrophosphate or methylenediphosphonate ligands, have been synthesized and characterized. Those uranyl peroxide clusters self-assemble and crystallize from aqueous solutions containing uranyl nitrate, hydrogen peroxide and pyrophosphate or methylenediphosphonate in a pH range from 5.3 to 8.1. In the structures of those clusters, uranyl hexagonal bipyramids are linked together by bridging peroxide, hydroxide, and pyrophosphate or methylenedisphosphonate ligands. The incorporation of pyrophosphates or methylenedisphosphonates results several interesting features on the coordination of uranyl ions and the topology of uranyl peroxide clusters.
Funder Acknowledgement(s): This work was supported by the Department of Energy Minority Serving Institution Partnership Program (MSIPP) managed by the Savannah River National Laboratory under SRNS contract DE-AC09-08SR22470.
Faculty Advisor: Dr. Jie Ling, firstname.lastname@example.org
Role: Synthesis and characterization of Uranyl peroxide nanoclusters