Crystal structure of the mixed methanol and ethanol solvate of bis{3,4,5-trimethoxy-N'-[1-(pyridin-2-yl)ethylidene]benzohydrazidato}zinc(II).

The unit cell of the title compound, [Zn(C₁₇H₁₈N₃O₄)₂]·CH₄O·C₂H₆O, contains two complex molecules related by an inversion centre, plus one methanol and one ethanol solvent molecule per complex molecule. In each complex, two deprotonated pyridine aroylhydrazone ligands {3,4,5-trimethoxy-N'-[1-(pyridin-2-yl)ethylidene]benzohydrazide} coordinate to the Zn^II ion through the N atoms of the pyridine group and the ketamine, and, additionally, through the O atom of the enolate group. In the crystal, dimers are formed by π-π interactions between the planar ligand moieties, which are further connected by C···O and C···C interactions. The intermolecular interactions were investigated using Hirshfeld surface analysis and two-dimensional fingerprint plots, revealing that the most important contributions for the crystal packing are from H···H (44.8%), H···C/C···H (22.2%), H···O/O···H (18.7%) and C···C (3.9%) interactions. [ABSTRACT FROM AUTHOR]