Molecular and Crystal Structures of Pu(IV) Nitrato-Complexes Crystallized with Double-Headed 2-Pyrrolidone Derivatives and Systematic Trends in Tetravalent f-Block Metals.

ABSTRACT: Molecular and crystal structures of Pu(IV) nitrate compounds bearing double-headed 2-pyrrolidone derivatives (L) were investigated to understand the complexation behavior of this genuine nuclear fuel material being recycled in the nuclear fuel cycle and to clarify systematic trends in coordination chemistry of related tetravalent f-block metal ions (M⁴⁺) such as Ce⁴⁺, Th⁴⁺, U⁴⁺, Np⁴⁺, and Pu⁴⁺. While all the tetravalent actinides (An⁴⁺; An = Th, U, Np) reported so far commonly form [An(NO₃)₆]^2- salts coupled with H⁺ countercations hydrogen-bonded to L in 3 M HNO₃(aq), Ce⁴⁺ instead affords a hydrolyzed dinuclear species, [Ce-O-Ce]⁶⁺, cross

SUBMITTER: Ono R 

PROVIDER: S-EPMC12344756 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature