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Electrosynthesis of complexes containing weakly acidic anions

2 Electrosynthesis of complexes containing weakly acidic anions [Pg.205]

For example, in the case of monosaccharide ligands, [MLnl complexes were synthesized with yields of 80-90% by electrolysis of methanol solutions of the ligands with a copper or nickel anode (M) and a platinum cathode, followed by predpitation of products with benzene. In contrast to the electrosynthesis, the chemical synthesis of the same copper chelates from cupric acetate in methanol proceeds with only a 30% yield and yields both [MLal and [M(MeC02)L], In electrosyntheses of this type the proposed reaction mechanisms involve the anodic dissolution of the metal followed by complex formation. [Pg.207]

The anodic dissolution of zinc in acetonitrile in the presence of the Sdxiff base A has been studied, Hgure 7.5  [Pg.207]

Electrosynthesis was complicated by the insertion of carbon dioxide from air into a Zn-N bond of the carbamate complex containing ligand A with formation of the zinc complex of the dianionic ligand B. Hydrogen was liberated at the platinum cathode.  [Pg.208]

A large number of metal thiolates have been obtained in high yields by dissolution of sacrificial anodes in solutions of thiols, Eqs. 7.12 - 7.14  [Pg.208]




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Acids containing

Anion complexation

Anion, , complex

Complex anionic

Complexes Containing

Electrosynthesis

Of weak acids

Weak acids

Weakly acidic

Weakness of acidity

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