Metal halide (compounds between metals and halogens- which consist of five chemically related elements: fluorine, chlorine, bromine, iodine, and astatine) ligands include [TiCl4],  and [FeCl4] which are colorless tetrahedral and [CoCl4], and [NiCl4] which are blue tetrahedral.
Metal halide (compounds between metals and halogens- which consist of five chemically related elements: fluorine, chlorine, bromine, iodine, and astatine) ligands include [TiCl4],  and [FeCl4] which are colorless tetrahedral and [CoCl4], and [NiCl4] which are blue tetrahedral.