(μ-Acetato-κ²O:O′)[μ-2,6-bis­({bis­[(pyri­din-2-yl-κN)meth­yl]amino-κN}meth­yl)-4-methyl­phenolato-κ²O:O](metha­nol-κO)dizinc bis­(perchlorate)

The binuclear title complex, [Zn₂(C₃₃H₃₃N₆O)(CH₃COO₂)(CH₃OH)](ClO₄)₂, was synthesized by the reaction between 2,6-bis­({[bis­(pyridin-2-yl)meth­yl]amino}­meth­yl)-4-methyl­phenol (H-BPMP), Zn(OAc)₂ and NaClO₄. The two Zn^II ions are bridged by the phenolate O atom of the octadentate ligand and the acetate group. An additional methanol ligand is terminally coordinated to one of the Zn^II ions, rendering the whole structure unsymmetric. Other symmetric dizinc complexes of BPMP have been reported. However, to the best of our knowledge, the present structure, in which the two Zn^II ions are distinguishable by the number of coordinating ligands and the coordination geometries (octahedral and square-pyramidal), is unique. The dizinc complex is a dication, and two perchlorate anions balance the charge. The –OH group of the coordinating methanol solvent mol­ecule forms a hydrogen bond with a perchlorate counter-anion. One of the anions is disordered over two sets of sites with an occupancy ratio of 0.734 (2):0.266 (2).

Crystal structure of 2-hy­droxy­imino-2-(pyridin-2-yl)-N′-[1-(pyridin-2-yl)ethyl­idene]acetohydrazide

The mol­ecule of the title compound is approximately planar with the planes of the two pyridine rings inclined to one another by 5.51 (7)°. In the crystal, mol­ecules are linked by bifurcated O—H...(O,N) hydrogen bonds, forming inversion dimers, which are in turn linked via C—H...O and C—H...N hydrogen bonds, forming sheets lying parallel to (502).