Redetermination of aqua­(dihydrogen ethyl­enediamine­tetra­acetato-κ5 OO′NN′O′′)nickel(II)

摘要

The crystal structure of the title compound, [Ni(C10H14N2O8)(H2O)] or [Ni(H2edta)(H2O)] (H4edta is ethyl­ene­diamine­tetra­acetic acid), originally determined by Smith & Hoard [J. Am. Chem. Soc. (1959), >81, 556–561] has been redetermined to a significantly higher precision. The Ni^II atom is coordinated in a distorted octa­hedral geometry by two N atoms and three O atoms from three carboxyl­ate groups of the H2edta²⁻ ligand and by an O atom of a water mol­ecule. The complex mol­ecules are linked by inter­molecular O—H⋯O hydrogen bonds into layers perpendicular to [100].