Equilibrium reactions network for the cis- or trans-bis(pyrazine)tetraammineruthenium(II/III) and ruthenium(II/III)-EDTA complexes.
The electrochemical and spectroelectrochemical behavior of the binuclear and trinuclear complexes generated from the association of cis- or trans-[Ru(NH(3))(4)(pz)(2)](3+ 2+ ) (where pz represents pyrazine) and [RuEDTA(H(2)O)](2- - ) complexes has been investigated in aqueous solution. Based on two sets of spectrophotometrically determined equilibrium constants and on the formal redox potentials, the complex network of equilibrium reactions involving mixed valence species has been elucidated.
Toma
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Instituto de Química, Universidade de São Paulo, Caixa Postal 26077, CEP 05599-970 São Paulo, SP, Brazil.
Sernaglia
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RL