A coordination polymer, [Cu(SCN)(iqi)]n (iqi = isoquinoline), containing copper(i) thiocyanate and a nitrogen-containing π-conjugated ligand, iqi, has been synthesized and its physical properties were evaluated. This coordination polymer has a two-dimensional (2D) sheet structure consisting of copper(i) thiocyanate and shows photoluminescence derived from 3MLCT and photoconductive properties.