The title compound, [Cu(C2N3)(2)(C12H8N2)](n), has a sheet-like structure,
built by [Cu(phen)(dca)(2)](n) (phen is 1,10-phenanthroline and dca is dicy
anamide) chains which are interconnected by secondary long Cu-N bonds betwe
en the chains. The Cu2+ ion is in a distorted tetragonal bipyramidal (5 + 1
) coordination environment. The sheets stack into the three-dimensional cry
stal structure through aromatic interactions between the coordinated phen l
igands of adjacent sheets.