Relative complex-forming powers of the cations Mg/sup 2 +/, Ca/sup 2 +/, Sr/sup 2 +/, and Ba/sup 2 +/ in one-component solvents

Journal Article · Fri Nov 20 04:00:00 EST 1987 · J. Gen. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:7169619

Kanevskii, E A; Rengevich, V B; Kochneva, N N

The relative complex-forming powers (electron-acceptor powers) of cations of alkaline-earth metals ..cap alpha../sub ac/(i) were determined from their influences on the half-wave reduction potentials of 1,2-naphthoquinone ..delta..E/sub 1/2/(HX, i) in organic solvents. For this the authors made use of the linear relation between ..delta..E/sub 1/2/(HX, i) and the donor numbers of the solvents. The relative complex-forming powers (electron-acceptor powers) of cations of alkaline-earth metals diminish with increase in the atomic number of the element in the periodic system. Assessments were made of the energies of formation of ion pairs with the radical anion of 1,2-naphthoquinone R/sup .-/ . . .M/sup 2 +/ in a noncomplexating solvent, which conform to the same relation. Hence, the nature of the donor does not influence the character of the change in the complex-formation properties of these cations in the given group of the periodic system.

• OSTI ID: 7169619
• Journal Information: J. Gen. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Gen. Chem. USSR (Engl. Transl.); (United States) Vol. 57:6; ISSN JGCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPLEXES
ALKALINE EARTH METAL COMPOUNDS
ANIONS
AROMATICS
BARIUM COMPLEXES
BARIUM COMPOUNDS
BINDING ENERGY
CALCIUM COMPLEXES
CALCIUM COMPOUNDS
CATIONS
CHARGED PARTICLES
COMPLEXES
COMPLEXOMETRY
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
IONS
LEPTONS
MAGNESIUM COMPLEXES
MAGNESIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SOLVENTS
POLAROGRAPHY
QUINONES
SOLVENTS
STRONTIUM COMPLEXES
STRONTIUM COMPOUNDS
VALENCE