[Ni(o-phthalate)(H2O)2]

[bis(2-hydroxy-1-naphthaldehydato)nickel(II)]

[Ni(4-hydroxy-2-methyl-N-(2-pyridyl)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide)2(glycine)2]

Ni(1H-indole-3-ethylene-5'-bromosalicylaldimine)2

Ni(1H-indole-3-ethylenesalicylaldimine)2