Crystal structure of bis­[(5-amino-1H-1,2,4-triazol-3-yl-κN⁴)acetato-κO]di­aqua­nickel(II) dihydrate

The title compound, bis­[(5-amino-1H-1,2,4-triazol-3-yl-κN⁴)acetato-κO]di­aqua)­nickel(II) dihydrate, is the first transition metal complex of 2-(5-amino-1H-1,2,4-triazol-3-yl)acetic acid (ATAA).