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    Scientists at the Pacific Northwest National Laboratory have used state-of-the-art
    experimental and computational methods at the Department of Energy’s EMSL, a national scientific user facility, to gain a deeper understanding of bonding in uranium oxides. The electronic structure of the uranyl ion UO2 2+ was studied in two solid salts: (NH4)4UO2(CO3)3 and rutherfordine (UO2CO3), the former representing an environment with hydrogen bonding to the uranyl oxygens. In the world of nuclear magnetic resonance (NMR), the study included an important “first”—the first solid-state data for UO2 2+—and an impressive “most”: the team found 17O chemical shift anisotropies among the largest for oxygen ever reported (>1200 ppm). For these contributions, the team’s work appeared on the February 28, 2010, cover of the Journal of Chemical Physics.

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