In the heterodinuclear title complex, [GdZn(C(22)H(18)N(2)O(4))(CH(3)COO)(3)], the Zn(II) ion is five-coordinated in a square-pyramidal environment defined by two O atoms and two N atoms from the ligand, forming the square plane, and one acetate O atom serving as the apex, while the Gd(III) ion is nine-coordinated in an approximate mono-capped tetra-gonal-anti-prismatic environment defined by four O atoms from the ligand and five acetate O atoms.