Journal of the American Chemical Society, Volume 140, Issue 34
Illustrating the work of Dylan Sures, Mireia Segado, Carles Bo, and May Nyman
The decaniobate polyoxometalate converts to much larger polyniobate assemblies, simply by adding alkali chloride salts, even if buffered at neutral pH. Both the reaction rate and resulting cluster size scales with alkali cation concentration and radius. This finding highlights the importance of often-overlooked counterions in aqueous speciation processes.
Digital media
European Journal of Inorganic Chemistry, Volume 2017, Issue 1
Illustrating the work of Harrison A. Neal, Jennifer Szymanowski, Jeremy B. Fein, Peter C. Burns and May Nyman
The transfer of uranium peroxide capsule-like clusters from water (blue) to organic solvent (purple). Each capsule contains 20–35 uranium atoms, and therefore the phase transfer that is depicted here occurs with high efficiency. This new uranium separation process could be employed in the various steps of the nuclear fuel cycle, which include mining, fuel reprocessing, and separation of wastes.
Digital media
Angewandte Chemie International Edition, Volume 54, Issue 32
Illustrating the work of Dana Reusser, William H. Casey and Alexandra Navrotsky
In polluted streams aluminum-based amorphous solids (flocs) are formed via an intermediate, the ε-Keggin [AlO4Al12(OH)24(H2O)12]7+ ion (Al137+). In their Communication on page 9253 ff., A. Navrotsky et al. show the ε-Keggin Al137+ ion is energetically close to these aluminum flocs. Shown is a stream polluted with aluminum hydroxide flocs from Collar Gulch, Montana.
Digital media, photography by Chris Gammons
Chemistry, a European Journal
Volume 20, Issue 13
Volume 20, Issue 13
Illustrating the work of Eitan Tiferet, Adrià Gil, Carles Bo, Tatiana Shvareva, May Nyman and Alexandra Navrotsky
Weighing in…︁ on uranyl phase stability. Two uranyl polyoxometalates that differ only by the anion encapsulated in the center are assessed by computational and experimental methods. Thermodynamic and molecular-orbital calculations agree that stability is gained by increasing cation/anion interactions. This agrees with the trend of all uranyl phases that range in dimension from monomers to infinite solids.
Marker and digital
College of science IMPACT issues
2016-17
2016-17
These IMPACT issues are no longer representative of the current Oregon State brand (redesigned and launched Spring 2017), but the older covers are still fun to look at!
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