trans-Dibromidobis(3-methyl­pyridine-κN)copper(II)

The asymmetric unit of the title compound, [CuBr₂(C₆H₇N)₂], contains one half-mol­ecule, the whole mol­ecule being generated by inversion through a center located at the Cu^II atom. The geometry around the Cu^II atom is square planar. Semicoordinate Cu...Br bonds [3.269 (1) Å] and nonclassical C—H...Br hydrogen bonds connect the mol­ecules, forming chains running parallel to the a axis. These chains are further linked via additional C—H...Br hydrogen bonds into a three-dimensional network.

4-(4-Nitro­benz­yl)pyridine

The title compound, C₁₂H₁₀N₂O₂, has a twisted conformation, with a dihedral angle between the planes of the pyridine and benzene rings of 78.4 (2)°. The nitro group is coplanar with the attached benzene ring within experimental error. The mol­ecules form centrosymmetric dimers via C_ar—H...O inter­actions (H...O = 2.49 Å) and the dimers are π-stacked along the b axis [the separation between ring centroids is 3.788 (2) Å].