TransitionmetalEDTA
TransitionmetalEDTA refers to the class of coordination complexes formed between transition metal ions and the chelating ligand EDTA, also known as ethylenediaminetetraacetic acid. EDTA is a hexadentate ligand that can bind a metal ion through two amine nitrogens and four carboxylate oxygens, often resulting in octahedral coordination around the metal. In most conditions, EDTA is fully deprotonated to EDTA4-, and the resulting metal complexes are highly stable.
For divalent transition metal ions such as Mn2+, Fe2+/Fe3+, Co2+, Ni2+, Cu2+, and Zn2+, the common complex
TransitionmetalEDTA complexes are characterized by high stability constants compared with many other metal–ligand systems, making them
Safety and environmental considerations include the potential for EDTA to mobilize metals in soils and water,