Metal(II) complexes of cobalt(II) (1), copper(II) (2), nickel(II) (3), and zinc(II) (4) with Schiff base derived from 2-aminopyridine were synthesized and characterized. Molecular structures of complexes (1) and (4) were determined by single X-ray diffraction studies. Crystalstructures of these two complexes were mononuclear. Furthermore, the metal ions were in a distorted tetrahedral environment