Analysis of vibration frequencies of uranyl ion in complexes with neutral bases

Journal Article · Mon Dec 01 00:00:00 EST 1986 · J. Appl. Spectrosc. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00659266· OSTI ID:6388515

Kobets, L V; Umreiko, D S

It has been shown that any estimate of the changes in vibration frequencies of UO/sub 2//sup 2 +/ applies only to the series of isostructural compounds with similar stoichiometry. Either the same values of stretching vibration frequencies of uranyl correspond to complexes with ligands that have different donor abilities, or changes in these frequencies are not great and do not reflect the real increase in the donor ability of the bases with respect to proton-containing acceptors. When the acido ligands are replaced or the stoichiometry of the complexes is changed, no correlations can be carried out, since, besides the basicities of donors, other parameters such as the dentateness of the ligand, and hence the symmetry and the structure of the compound, are also varied. In this paper, the authors evaluate the contributions of the ligands to the shift of the vibration frequencies of uranyl that have been made and do not take into account the characteristic features of the compounds which therefore led to very different values of the contributions for one and the same ligand in different compounds. To evaluate the shifts produced by the ligands, the value of 1065 cm/sup -1/ was taken as the vibration frequency of a hypothetical fee uranyl ion, not perturbed by bonds with equatorial ligands. The authors also evaluate the contributions of ions able to form polymer structures.

• OSTI ID: 6388515
• Journal Information: J. Appl. Spectrosc. (Engl. Transl.); (United States), Vol. 44:6; Other Information: Translated from Zh. Prikl. Spektrosk.; 44: No. 6, 982-987(Jun 1986)
• Country of Publication: United States
• Language: Russian

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
URANYL COMPLEXES
INFRARED SPECTRA
URANYL COMPOUNDS
FREQUENCY ANALYSIS
VIBRATIONAL STATES
AMIDES
ANIONS
BINDING ENERGY
COMPARATIVE EVALUATIONS
DIPOLE MOMENTS
DMSO
ELECTRONIC STRUCTURE
ELECTRONS
HYDRATES
LIGANDS
ORGANIC SOLVENTS
SPECTRAL SHIFT
STOICHIOMETRY
STRUCTURAL CHEMICAL ANALYSIS
TBP
URANYL CHLORIDES
URANYL NITRATES
VALENCE
ACTINIDE COMPLEXES
ACTINIDE COMPOUNDS
BUTYL PHOSPHATES
CHARGED PARTICLES
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
ESTERS
EXCITED STATES
FERMIONS
HALIDES
HALOGEN COMPOUNDS
IONS
LEPTONS
NITRATES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHORIC ACID ESTERS
SOLVENTS
SPECTRA
SULFOXIDES
URANIUM COMPLEXES
URANIUM COMPOUNDS
400201* - Chemical & Physicochemical Properties
640302 - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory