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The CuII atom in the title compound, [Cu2(C10H9NO3)2(C4H4N2)].4H2O, adopts a square-pyramidal coordination with the three donor atoms of the N-salicyl­idene-R, S-alaninato Schiff base dianion and one N atom of the pyrazine ligand bound in the basal plane. The axial position is occupied by a phenolato O atom of a symmetry-related ligand at an apical distance of 2.396 (2) Å. The molecules are connected through the second N atom of the pyrazine to form binuclear copper units, further linked through the above-mentioned apical coordinations into chains parallel to [1 0 0]. The water molecules help to form an hydrogen-bonding network between the chains. All copper polyhedra and the molecular axis are oriented parallel.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks I, default

fcf

Structure factor file (CIF format)
Contains datablock alazin

CCDC reference: 129719

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