Spectroscopic investigation of the structure of complexes of uranyl salts with hexamethylphosphoric triamide
Complexes of various uranyl salts with hexamethylphosphoric triamide (HMPA), whose structures were studied with the aid of IR and Raman spectroscopy, as well as a luminescence-spectroscopic analysis, have been isolated from aqueous solutions. It has been discovered that the formation of the complex UO/sub 2/(ClO/sub 4/)/sub 2/ x 4HMPA results in the displacement of the perchlorate ions from the inner coordination sphere of the uranyl ion by the HMPA molecules. Displacement of the anions of the acids is not observed in the case of the sulfate and nitrate complexes. The absence of water of crystallization and inner-sphere water is characteristic of all the complexes obtained. The results of the work make it possible to designate the place of HMPA in the displacement series of ligands.
- OSTI ID:
- 6509505
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 11:8; ISSN SJCCD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ACTINIDE COMPLEXES
ACTINIDE COMPOUNDS
AMIDES
CHEMICAL ANALYSIS
CHLORINE COMPOUNDS
COMPLEXES
COMPLEXOMETRY
DIFFERENTIAL THERMAL ANALYSIS
ELECTRONIC STRUCTURE
GRAVIMETRIC ANALYSIS
HALOGEN COMPOUNDS
INFRARED SPECTRA
LATTICE VIBRATIONS
LIGANDS
LUMINESCENCE
NITRATES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PERCHLORATES
QUANTITATIVE CHEMICAL ANALYSIS
RAMAN SPECTRA
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
SULFATES
SULFUR COMPOUNDS
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
URANIUM COMPLEXES
URANIUM COMPOUNDS
URANYL COMPLEXES
URANYL COMPOUNDS
URANYL NITRATES
URANYL PERCHLORATES
URANYL SULFATES