(2,9-Dimethyl-1,10-phenanthroline-κ2N,N′)(4-hydroxybenzoato-κ2O,O′)-(nitrato-κO)copper(II)

In the title compound, [Cu(C7H5O3)(NO3)(C14H12N2)], the Cu-II ion is five-coordinated in a slightly distorted square-pyramidal geometry by one O atom of a nitrate anion, two O atoms of a 4-hydroxybenzoate anion, and two N atoms from a bidentate 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand. In the crystal structure, inversion-related molecules are linked into dimers by O-H center dot center dot center dot O hydrogen bonds. The packing is further stabilized by pi-pi interactions involving the benzene rings of the dmphen and hydroxybenzoate units, with centroid-centroid distances of 3.4930 (14) or 3.5727 (14) angstrom.