neptunium, Np(V), with nitrate ion in an ionicliquid solution has been studied spectroscopically for the first time. The characteristic f-f transition absorption band of Np(V) in the NIR region changes significantly upon the titration of nitrate ion into the solution, revealing strong complexation of Np(V) with nitrate ion in the ionicliquid. Most notably, the absorption band of Np(V) almost disappears
Straightforward Reductive Routes to Air-Stable Uranium(III) and Neptunium(III) Materials
作者:Justin N. Cross、Eric M. Villa、Victoria R. Darling、Matthew J. Polinski、Jian Lin、Xiaoyan Tan、Naoki Kikugawa、Michael Shatruk、Ryan Baumbach、Thomas E. Albrecht-Schmitt
DOI:10.1021/ic500771t
日期:2014.7.21
Studies of trivalent uranium (U3+) and neptunium (Np3+) are restricted by the tendency of these ions to oxidize in the presence of air and water, requiring manipulations to be carried out in inert conditions to produce trivalent products. While the organometallic and high-temperature reduction chemistry of U3+ and, to a much smaller extent, Np3+ has been explored, the study of the oxoanion chemistry of these species has been limited despite their interesting optical and magnetic properties. We report the synthesis of U3+ and Np3+ sulfates by utilizing zinc amalgam as an in situ reductant with absolutely no regard to the exclusion of O-2 or water. By employing this method we have developed a family of alkali metal U3+ and Np3+ sulfates that are air and water stable. The structures, electronic spectra, and magnetic behavior are reported.
Bessonov, A. A.; Afonas'eva, T. V.; Krot, N. N., Radiokhimiya, 1990, vol. 32, p. 453 - 457
作者:Bessonov, A. A.、Afonas'eva, T. V.、Krot, N. N.
DOI:——
日期:——
Bessonov, A. A.; Budantseva, N. A.; Fedoseev, A. M., Radiokhimiya, 1990, vol. 32, p. 447 - 452
作者:Bessonov, A. A.、Budantseva, N. A.、Fedoseev, A. M.、Perminov, V. P.、Afonas'eva, T. V.、Krot, N. N.