C11H16ClCuN2O3, monoclinic, P21/n (no. 14), a = 5.6017(4) Å, b = 10.7601(8) Å, c = 10.4036(8) Å, β = 95.697(2)°, V = 623.98(8) Å3, Z = 2, Rgt(F) = 0.0321, wRref(F2) = 0.0833, T = 100(1) K. © 2018 Mouslim Messali et al., published by De Gruyter, Berlin/Boston.