CHED 859 |
| Peter R. Craig, Corey S. Westfall, Samuel W. Suyehira, and Paris S. Humphries. |
| Uranium waste from nuclear activity continues to potentially threaten aquifers and the communities they support. In an effort to address this environmental concern, we have synthesized and characterized the following prototype chelating agents and corresponding Uranyl cation ([UO2]2+) complexes: 4,4',4”-[nitrilotris(ethyleneimino)]tris(pent-3-ene-2-one) (H3trenac), 4,4',4”-[nitrilotris(propyleneimino)]tris(pent-3-ene-2-one) (H3trpnac), and 3-(2-benzoic acid)-2,4-pentanedione (Hbzacac). We have also evaluated the binding affinity of the prototype chelating agents for [UO2]2+, and the extent of dissociation/dissolution of the resulting complexes using UV-Vis spectroscopy and atomic absorption spectroscopy. We report here the results of our work for both the protonated and deprotonated forms of H3trenac, H3trpnac, and Hbzacac. This work was funded by NIH grant P20 RR016454. |
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Undergraduate Research Poster Session: Environmental Chemistry
2:00 PM-4:00 PM, Monday, 27 March 2006 Georgia World Congress Center -- Ex. Hall B4, Poster
Division of Chemical Education |