Issue 24, 2002

Complexation of [S,S] and mixed stereoisomers of N,N′-ethylenediaminedisuccinic acid (EDDS) with Fe(iii), Cu(ii), Zn(ii) and Mn(ii) ions in aqueous solution

Abstract

The protonation and complex formation equilibria of N,N′-ethylenediaminedisuccinic acid (EDDS) in the isomeric form [S,S] and a mixture of EDDS isomers (25% [S,S], 50% [R,S], 25% [R,R]) with Fe(III), Cu(II), Zn(II) and Mn(II) have been studied in aqueous 0.1 M NaCl solution at 25 °C by potentiometric titrations. The calculations were carried out with the computer program SUPERQUAD.

Graphical abstract: Complexation of [S,S] and mixed stereoisomers of N,N′-ethylenediaminedisuccinic acid (EDDS) with Fe(iii), Cu(ii), Zn(ii) and Mn(ii) ions in aqueous solution

Article information

Article type
Paper
Submitted
08 Aug 2002
Accepted
14 Oct 2002
First published
08 Nov 2002

J. Chem. Soc., Dalton Trans., 2002, 4644-4648

Complexation of [S,S] and mixed stereoisomers of N,N′-ethylenediaminedisuccinic acid (EDDS) with Fe(III), Cu(II), Zn(II) and Mn(II) ions in aqueous solution

M. Orama, H. Hyvönen, H. Saarinen and R. Aksela, J. Chem. Soc., Dalton Trans., 2002, 4644 DOI: 10.1039/B207777A

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