μ-Pyrazine-N:N'-bis[aqua(N-salicylideneglycinato-O,N,O')copper(II)] Dihydrate

The title compound, [Cu₂(C₉H₇NO₃)₂(μ-C₄H₄N₂)(H₂O)₂].2H₂O, adopts a square-pyramidal copper(II) coordination with three donor atoms of the N-salicylideneglycinato Schiff base dianion and one N atom of the pyrazine ligand bound in the basal plane. The axial position is occupied by a water O atom at a distance of 2.436 (2) Å. The molecules are connected through the second N atom of the pyrazine to form binuclear copper units. The water molecules form a hydrogen-bonding network between the dicopper molecules.

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