Synthesis, crystal structure and Hirshfeld surface analysis of -poly[[bis-(semicarbazide-κ ,)copper(II)]-μ-sulfato-κ :'].

The title polymer, [Cu(SO)(CHNO)] , has been synthesized from aqueous solutions of CuSO and semicarbazide. In the crystal structure, the Cu atoms are chelated by two neutral semicarbazide mol-ecules through the oxygen atom and a nitro-gen atom of the amino group. The remaining two positions of the Jahn-Teller-distorted octa-hedral coordination sphere are occupied by oxygen atoms of two sulfate anions in the axial positions.