Synthesis, structure, and thermolysis of compounds of uranyl acetate with some amides
The present investigation was devoted to studying the changes in the structure of the intial uranyl carboxylate UO/sub 2/(CH/sub 3/COO)/sub 2/.2H/sub 2/O connected with the introduction of neutral nitrogen-containing ligands into the coordination sphere of the uranyl group, and also the nature of the coordination and the composition of the additional ligands on the course of the thermal decomposition of the complex. Complex compounds of uranyl acetate with dimethylacetamide and urea that have been described previously have been synthesized. On the basis of x-ray structural results the following formulas have been established for the compounds obtained: (UO/sub 2/(CH/sub 3/COO)/sub 2/.DMAA)/sub 2/ and (UO/sub 2/(CH/sub 3/COO)Ur/sub 3/)(UO/sub 2/(CH/sub 3/COO)/sub 3/). As the result of thermal analysis (polythermal and isothermal conditions) of bisdiacetato(dimethylacetamide)uranyl (VI) and the acetatoureauranyl(VI) triacetatodioxouranate(VI) it has been shown that the course of the thermal decomposition of the amide complexes of uranyl acetate, and also the composition of the oxide formed in this process are determined by the presence of the H atoms in the amide grouping which participate in the formation of hydrogen bonds in the compounds and lead to an increased mobility of the nitrogen atoms.
- Research Organization:
- M.V. Lomonosov Moscow State Univ., USSR
- OSTI ID:
- 5626475
- Journal Information:
- Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 31:4; ISSN BACCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACETATES
ACTINIDE COMPOUNDS
AMIDES
CARBOXYLIC ACID SALTS
CHEMICAL PREPARATION
LIGANDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
THERMAL DEGRADATION
URANIUM COMPOUNDS
URANYL COMPOUNDS