Electrochemical reduction of coordination compounds of oxovanadium(IV), nickel(II), and copper(II) with tetradentate N/sub 2/O/sub 2/ ligands based on chalcogenosemicarbazides in dimethylformamide

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

OSTI ID:7004348

Pakhopol, V S; Budnikov, G K; Gerbeleu, N V; Kargina, O Y; Revenko, M D; Morozov, V I

The electrochemical reduction of coordination compounds of oxovanadium(IV), nickel(II), and copper(II) with tetradentate N/sup 1/, N/sup 4/-di(salicylidene) isochalco-genosemicarbazides and their S(Se)-alkyl derivatives on a dropping mercury electrode in dimethylformamide on a background of 0.1 M Et/sub 4/NClO/sub 4/ has been studied. The first cathodic wave corresponds to the reduction of the ligand fragment and does not affect the central atom, as was proved with the aid of ESR in the example case of the nickel compounds. The influence of the nature of the substituents in various parts of the molecule on the electrochemical behavior of the complexes has been investigated. The formation of oxygen adducts of the chelates has been discovered. The compounds investigated bay be arranged in the following order according to the ease of reduction of the oxygen adducts: VO > Ni > Cu.

• OSTI ID: 7004348
• Journal Information: Sov. J. Coordinat. Chem.; (United States), Vol. 13:5; Other Information: Translated from Koordinatsionnaya Khimiya; 13: No. 5, 620-626(May 1987)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPPER COMPLEXES
ELECTROLYSIS
ELECTRON SPIN RESONANCE
REDUCTION
NICKEL COMPLEXES
VANADIUM COMPLEXES
ADDUCTS
AMIDES
CHELATES
COORDINATION VALENCES
ELECTRONEGATIVITY
NITROGEN OXIDES
SEMICARBAZIDES
VOLTAMETRY
CARBONIC ACID DERIVATIVES
CHALCOGENIDES
CHEMICAL REACTIONS
COMPLEXES
LYSIS
MAGNETIC RESONANCE
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RESONANCE
TRANSITION ELEMENT COMPLEXES
VALENCE
400400* - Electrochemistry