On existence and properties of plutonium(VIII) derivatives

  title={On existence and properties of plutonium(VIII) derivatives},
  author={Y. Kiselev and M. V. Nikonov and V. D. Dolzhenko and A. Ermilov and I. Tananaev and B. Myasoedov},
  journal={Radiochimica Acta},
  pages={227 - 237}
Abstract The existence of Pu(VIII) was shown in alkaline solutions and in nonpolar solvents (CCl4 and CHCl3) on the ground of such experimental facts like extraction of plutonium species, obtained by means of ozonization of Pu(VI) alkaline solutions into CCl4 and CHCl3; volatility of Pu compounds out of aqueous alkaline solutions, and the mentioned solvents. The product of interaction between PuO3 · 0.8H2O and XeF2 in CCl4 and CHCl3 was of the same chemical form for both cases and identical… Expand
3 Citations
Electrochemical, computational and spectroscopic investigation on local environment of plutonium in ionic liquid and aqueous medium: a comparative study
Abstract With an aim to understand the nature of species, cyclic voltammetry (CV) of Pu(IV) in dilute HBr and in a room temperature ionic liquid (RTIL), 1-octyl-3-methylimidazolium bromide (C8mimBr)Expand
Is Octavalent Pu(VIII) Possible? Mapping the Plutonium Oxyfluoride Series PuO(n)F(8-2n) (n = 0-4).
Calculations on PuO(n)F(8-2n) (n = 0-4) molecules notably confirm that PuO2F4 has both (1)D(4h) and (5)C(2v) minima with the oxidation states Pu(VIII) and Pu( V), respectively, with the latter having lower energy. Expand
Discovery of the Transuranium Elements Inspired Rearrangement of the Periodic Table and the Approach for Finding New Elements
The synthesis and characterization of transuranium elements played an important and in the history of the periodic table. Prior to their discovery, elements up to uranium were thought to be 6dExpand


Plutonium in higher oxidation states in alkaline media
Abstract Experimental chemical and electrochemical properties of plutonium in strong alkaline solution are described. Using different chemical and electrochemical methods to determine plutoniumExpand
Abstract In alkaline media Np(VI) is oxidised to heptavalent state by O3, oxygen compounds of hexa- and octavalent Xe, persulphate, periodate, hypochlorite, and hypobromite ions, bismuthates and,Expand
Quantum chemical calculations of the redox potential of the Pu(VII)/Pu(VIII) couple.
  • S. Tsushima
  • Medicine, Chemistry
  • The journal of physical chemistry. B
  • 2008
The Mulliken population of Pu in Pu (VII) and Pu (VIII) complexes are very similar, suggesting that the spin-orbit effect is rather small in Pu( VII) complexes and that when Pu(VII) is oxidized to Pu(VIII), the electron is stripped mainly from the ligand. Expand
Crystal structure of a Pu(VII) potassium salt, K3PuO4(OH)2·2H2O
A new Pu(VII) compound, K3PuO4(OH)2·2H2O, was synthesized, and its structure was studied by single crystal X-ray diffraction. This compound is isostructural to the previously describedExpand
Oxidation of Pu(VI) with ozone and stability of the oxidation products, Pu(VII) and Pu(VIII), in concentrated alkali solutions
Oxidation of Pu(VI) with ozone and stability of the oxidation products, Pu(VII) and Pu(VIII), in 4–15 M NaOH solutions were studied. In a wide range of alkali concentrations, from 1 to 15 M, theExpand
Stabilization of oxidation states in transition metals
Stabilization of oxidation states (OSs) for transition elements is considered. Distinctions between methods for stabilizing OSs in compounds in solution and in a solid state are discussed. TheExpand
On the Highest Oxidation States of Plutonium in Alkali Solutions in the Presence of Ozone
During ozonation of Pu(VI) alkaline solutions, the highest oxidation state of Pu is formed in an oscillatory reaction. This plutonium species is reduced with Pu(VI) or Fe(III). Ferrate ion is alsoExpand
The ways in which chemical environment may stabilize a particular oxidation state are discussed and an attempt was made to rationalize the dependence of the oxidation state on the various electronicExpand
Experimental data points to the existence of plutonium(VIII) in alkaline solutions
The ozonising of an alkaline Pu VI solution resulted in the formation of both Pu VII and Pu VIII , and the black-blue colour earlier was ascribed to Pu VII .
Understanding structure and bonding in early actinide 6d(0)5f0 MX6q (M = Th-Np; X = H, F) complexes in comparison with their transition metal 5d0 analogues.
The detailed comparison of these prototype systems with their 5d(0) transition metal analogues reveals in detail how the 5f orbitals modify the structural preferences of the actinide complexes relative to the transition metal systems. Expand