Acta Cryst. (2011). E67, m624-m625  [ doi:10.1107/S1600536811014462 ]

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

J. Ma, W.-Z. Fan and L.-R. Lin

Abstract: The title compound, bis[-(E)-2-({2-[4-(dimethylamino)benzoyl]hydrazinylidene}methyl)phenolato]bis[formatozinc], [Zn₂(C₁₆H₁₆N₃O₂)₂(CHO₂)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 Zn₂O₂ core and parallel faces derived from the Schiff base ligands. The crystal packing is stabilized by intermolecular N-HO hydrogen bonds between the amide N atom and the formate carboxylate O atom.

Online 22 April 2011

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