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In the title compound, [Cu 2 (C 13 H 11 N 4 S) 2 (N 3 ) 2 ], the Cu II  cation is  N , N ′, S -chelated by the deprotonated Schiff base ligand and is coordinated by the azide anion, while an N atom from an adjacent azide anion bridges the Cu II  cation at the apical position with a longer Cu—N distance of 2.533 (3) Å, completing the distorted N 4 S square-pyramidal coordination geometry. A pair of azide anions bridge the two Cu II  cations, forming a centrosymmetric binuclear mol­ecule. In the crystal, the binuclear mol­ecules are linked by an N—H⋯N hydrogen bond into a ribbon running along the  a  axis.

acta crystallographica. section e

Di-μ-azido-κ4N1:N1′-bis({1-[(E)-phenyl(pyridin-2-yl-κN)methylidene]thiosemicarbazidato-κ2N1,S}copper(II))