A dinuclear zinc complex with (E)-4-dimethyl­amino-N′-(2-hy­droxy­benzyl­idene)benzohydrazide

The title compound, bis­[μ-(E)-2-({2-[4-(dimethyl­amino)­benzo­yl]hydrazinyl­idene}meth­yl)phenolato]bis­[formato­zinc], [Zn(2)(C(16)H(16)N(3)O(2))(2)(CHO(2))(2)], is a dinuclear Zn(II) complex containing two Zn(II) cations, two monovalent anions of a Schiff base ligand, 4-dimethyl­amino-N′-(2-hy­droxy­benzyl­idene)benzohydrazide (L), and two formate ions. Each Zn(II) atom chelates with the hy­droxy O atom of salicyl­aldehyde, the imine N atom, the carbonyl O atom, the formate carboxyl­ate O atom and the hy­droxy O atom of the salicyl­aldehyde moiety in a symmetry-related unit. The five-coordinate Zn(II) atoms form a dimeric centrosymmetric unit with a central parallelepiped Zn(2)O(2) core and parallel faces derived from the Schiff base ligands. The crystal packing is stabilized by inter­molecular N—H⋯O hydrogen bonds between the amide N atom and the formate carboxyl­ate O atom.