catena-Poly[[(N-salicylideneglycinato-N,O,O')copper(II)-μ-pyrazine-N:N'-(N-salicylideneglycinato-N,O,O')copper(II)]-μ-1,4-dioxane-O:O']

In the title compound, [Cu₂(C₉H₇NO₃)₂(C₄H₄N₂)(C₄H₈O₂)], each Cu^II ion has a square pyramidal coordination environment with a tridentate N-salicylideneglycinato Schiff base dianion and a pyrazine ligand bound in the basal plane. The pyrazine ligand acts as a bifunctional ligand, joining two Schiff base complexes to form binuclear units. The apex of the pyramid is occupied by a dioxane O atom at an apical distance of 2.510 (2) Å. The binuclear units are associated into chains parallel to the x axis through dioxane bridges.

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