Transition metal complexes with EDDA-type ligands - A review

The review summarizes the results of recent studies on edda-type metal complexes. It focuses on work published during the period 1984-2001. The metals include are Co, Cr, Cu, Ni, Zn, Mn, Sn, Fe, V, Rh, Pt, Ru, whereas edda-type represents ethylenediamine-N,N-diacetate, ethylenediamine-N,N-di-acetate, N,N'-dimethylethylenediamine-N,N'-diacetate, N,N'-diethylethylenediamine-N,N'-diacetate, 1,2-cyclohexanediamine-N,N'-diacetate, N,N'-dimethyl-1,2-cyclohexanediamine-N,N'-diacetate, ethylenediamine-N,N'-di-3-propionate, N,N'-dimethylethylenediamine-N,N'-di-3-propionate, ethylenediamine-N,N'-di-S-alpha-propionate, N,N'-dimethyl-ethylenediamine-N,N'-di-alpha-propionate, 1,3-propanediamine-N,N'-diacetate (trimethylenediamine-N,N'-diacetate), 1,3-propanediamine-N,N'-di-3-propionate (trimethylenediamine-N,N'-di-3-propionate), N,N'-dimethylethylenediamine-N,N'di-alpha-butyrate, N,N'-diethylethylenediamine-N,N'-di-alpha-butyrate, 1-diethylenetriamineacetate (8-amino-3,6-diazao-ctanoate), ethylenepropylenetriamineacetate (9-amino-3,6-diazaoctanoate), dipropylenetriamineacetate (10-amino-3,6-diazaoctanoate), N,N-bis(2-aminoethyl)glycinate, N,N-bis(3-aminopropyl)glycinate, N-(2-aminoethyl)-N-(3-aminopropyl)glycinate, N-(2-aminoethyl)iminodiacetate (N-(2-aminoethyl)-N-carboxymethylglycine), N-(3-aminopropyl)imino diacetate tetradentate ligands. This paper provides a review of these complexes including their syntheses and X-ray crystal structures, spectroscopic (IR, Raman, NMR, ESR, electronic absorption and CD) measurements, electrochemistry, kinetic and thermodynamic information, magnetic properties, hydrolysis phenomena as well as chromatographic studies.