A two-dimensional copper(I) coordination polymer based on 1-[2-(cyclo­hexyl­sulfan­yl)eth­yl]pyridin-2(1H)-one

The reaction of copper(I) iodide with 1-[2-(cyclo­hexyl­sulfan­yl)eth­yl]pyridin-2(1H)-one (L, C(13)H(19)NOS) in aceto­nitrile/di­chloro­methane results in a crystalline coordination polymer, namely poly[bis­{μ(2)-1-[2-(cyclo­hexyl­sulfan­yl)eth­yl]pyridin-2(1H)-one}tetra-μ(3)-iodido­tetra­copper(I)], [Cu(4)I(4) L (2)](n). The asymmetric unit comprises two ligand mol­ecules, four copper(I) ions and four iodide ions. Inter­estingly, the O atoms are bound to the soft copper(I) ions. The stair-step clusters of Cu and I atoms in the asymmetric unit are linked repeatedly, giving rise to infinite chains along [100]. Neighbouring infinite chains are linked through the L mol­ecules, forming a two-dimensional brick-wall structure. These two-dimensional networks are stacked alternately along [001]. Additionally, there are inter­molecular C—H⋯I hydrogen bonds and C—H⋯π inter­actions between the ligands.