NiCl42
NiCl42 refers to the tetrachloridonickelate(II) complex anion, [NiCl4]2-. It consists of a nickel(II) center coordinated by four chloride ligands in a tetrahedral geometry, giving the overall 2− charge. This species commonly appears in chloride-rich solutions or as the anionic component of salts such as K2[NiCl4] and (NH4)2[NiCl4].
In solution, [NiCl4]2− is the predominant nickel(II) complex when chloride concentration is high. The four-coordinate, tetrahedral
Chemically, nickel in this complex is in the +2 oxidation state and the ion is paramagnetic, possessing
Preparation and use: [NiCl4]2− can be generated by reacting Ni2+ sources with excess chloride, such as NiCl2
Safety: Nickel compounds, including coordination complexes like [NiCl4]2−, can be toxic and pose health risks with