INFRARED SPECTRA AND STRUCTURE OF URANYL AND TRANSURANIUM (V) AND (VI) IONS IN AQUEOUS PERCHLORIC ACID SOLUTION

Author Institution: University of California, Los Alamos Scientific LaboratoryThe infrared spectra of aqueous solutions of U(VI), Np(VI), Pu(VI), Am(VI), Np(V), and Am(V) ions have been observed. Due to strong water absorption, it was necessary to use very short path lengths (5-10 microns) and fairly concentrated solutions ($>0.5$ formal in U, Np, etc.). All of the (VI) ions exhibit fairly sharp infrared absorption bands in the region $935-965 cm^{-1}$. The (V) ions exhibit considerably broader bands in the region $815-830 cm^{-1}$. From this and other evidence, the conclusion is that they are all doubly oxygenated. The technique in obtaining these spectra is described. From the observed results, X-O bond force constants are calculated. These force constants are used to calculate approximate bond distances by using an extrapolation of Badger's rule. The structure of the ions is briefly discussed. The effect other ions have on the O-X-O frequency, $\nu_{3}$, is considered

THE RADIOCHEMISTRY OF AMERICIUM AND CURIUM

A review of the nuclear and chemical features of particular interest to the radiochemist, a discussion of problems of dissolution of a sample and counting techniques, and a collection of radiochemical procedures for the elements as found in the literature are given. (W.L.H.

Color production in lithium fluoride by radiation /

Mode of access: Internet

Qualitative separation of americium and plutonium using cupferron /

Work performed at the Los Alamos Scientific Laboratory."January 12, 1951, [TIS Issuance Date].""This report is based on LADC-793.""AECU-1006"Mode of access: Internet