Energy aspects of acid-base interactions of uranyl salts with amines

Journal Article · Mon Feb 01 00:00:00 EST 1988 · Sov. J. Coordinat. Chem.; (United States)

OSTI ID:6597144

Kobets, L V

A comparison of the molecular-energy parameters of amines and oxygen-containing donors has been conducted, since their ionization potentials and proton affinities do not make it possible to account for the increased tendency of aliphatic and heterocyclic amines to undergo protonation reactions rather than to become bonded to a uranyl ion. This can be done on the basis of the theories of acid-base equilibria. The degree of hardness of the uranyl ion, as well as of ..pi..-acid and nitrogen-containing ligands, has been evaluated on the basis of Klopman's perturbation theory. It follows from the data obtained that the conversions of uranyl salts take place as charge-controlled reactions and are predominantly governed by the electrostatic interactions between the reacting components. The tendency of the uranyl ion to interact with hard ..pi..-acid ligands (F/sup -/, Cl/sup -/, OH/sup -/) is higher than that of the proton, while its tendency to interact with nitrogen-containing donors is lower.

• OSTI ID: 6597144
• Journal Information: Sov. J. Coordinat. Chem.; (United States), Vol. 13:4; Other Information: Translated from Koordinatsionnaya Khimiya; 13: No. 4, 516-520(Apr 1987)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMINES
BINDING ENERGY
CHEMICAL REACTION KINETICS
COMPLEXOMETRY
URANYL COMPOUNDS
BASES
CONFIGURATION INTERACTION
COORDINATION VALENCES
ELECTRONEGATIVITY
ELECTRONS
ELECTROSTATICS
ENERGY LEVELS
IONIZATION POTENTIAL
PERTURBATION THEORY
PH VALUE
URANYL COMPLEXES
ACTINIDE COMPLEXES
ACTINIDE COMPOUNDS
COMPLEXES
ELEMENTARY PARTICLES
ENERGY
FERMIONS
KINETICS
LEPTONS
ORGANIC COMPOUNDS
REACTION KINETICS
URANIUM COMPLEXES
URANIUM COMPOUNDS
VALENCE
400201* - Chemical & Physicochemical Properties