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Title: Some properties of compounds of uranyl nitrate with dimethylformamide

The authors establish that in the interaction of solutions of uranyl nitrate containing excess HNO/sub 3/ with dimethylformamide, the compound UO/sub 2/(N)/sub 3/)/sub 2/ X 2HCON(CH/sub 3/)/sub 2/ crystallizes. An analysis of the IR spectrum of the salt indicates bidentate coordination of the NO/sup -//sub 3/ ions and a bond of the DMFA molecules to the uranium atom through the oxygen atoms. The interplane distances were calculated according to the x-ray powder patterns. The solubility of the compound was studied as a function of the composition of the liquid phase. The minimum solubility, equal to 0.013 M, is achieved at NHO/sub 3/ concentrations of about 6 M and DMFA 4-6 M. Using the electronic absorption spectra, some data were obtained on the nature of comoplex formation in solution.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
5399576
Resource Type:
Journal Article
Resource Relation:
Journal Name: Sov. Radiochem. (Engl. Transl.); (United States); Journal Volume: 27:5
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; FORMAMIDE; ABSORPTION SPECTRA; CHEMICAL COMPOSITION; CRYSTALLIZATION; URANYL COMPLEXES; URANYL NITRATES; COMPLEXOMETRY; INFRARED SPECTRA; MOLECULAR STRUCTURE; NITRIC ACID; QUANTITY RATIO; SOLUBILITY; STRUCTURAL CHEMICAL ANALYSIS; URANIUM OXIDES U3O8; X-RAY DIFFRACTION; ACTINIDE COMPLEXES; ACTINIDE COMPOUNDS; AMIDES; CHALCOGENIDES; COHERENT SCATTERING; COMPLEXES; DIFFRACTION; HYDROGEN COMPOUNDS; INORGANIC ACIDS; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SCATTERING; SPECTRA; URANIUM COMPLEXES; URANIUM COMPOUNDS; URANIUM OXIDES; URANYL COMPOUNDS 400104* -- Spectral Procedures-- (-1987)