WIBS Talk: Non-aqueous Uranium Chemistry: Stabilizing Six Oxidation States
Thu, Nov 09
|Pullman
WIBS Talks are informal 20-30 minute talks (offered quarterly) that discuss a pressing topic facing society today, followed by an informal discussion and socialization.
Time & Location
Nov 09, 2023, 5:45 PM – 9:00 PM
Pullman, 735 Alene Ct, Pullman, WA 99163, USA
About The Event
James Boncella will be presenting a 20-30 minute talk (abstract below) at 6:30 pm. Socialization sarts at 6:00 pm with an informal discussion and socialization the remainder of the evening. A Zoom option is available (see below).
Abstract: In this talk, I will discuss our research into the synthesis of uranium complexes in non-aqueous media. Unlike aqueous solutions where the major species are U(VI), as the uranyl ion (UO2)2+, and U(IV), non-aqueous media allows the formation of U complexes in formal oxidation states ranging from U(I) to U(VI).
We have been investigating these complexes to assess the involvement of the 5f valence orbitals in actinide-ligand bonding because differences in 4f vs 5f participation in M-L bonding are believed to play an important role in actinide/lanthanide separation chemistry. Our long-standing interest in high-valent U(VI-IV)-Imido and -bis(imido) complexes (where U imido is the U=NR functionality) originally focused our attention on 5f participation in the…