(Nitrato-κO)(1,10-phenanthroline-κ²N,N′)(picolinato N-oxide-κ²O,O′)copper(II)

The coordination environment of copper(II) in the title compound, [Cu(C₆H₄NO₃)(NO₃)(C₁₂H₈N₂)], is square pyramidal; the basal plane comprises the two N atoms of 1,10-phenanthroline and the two O atoms of picolinate N-oxide, with the apical position occupied by a nitrate O atom.

A one-dimensional coordination polymer of copper(II) with 2-pyrazine­carboxyl­ate

A new one-dimensional coordination polymer, catena-poly­[[aqua­(nitrato-κ²O,O′)copper(II)]-μ-pyrazine-2-carboxyl­ato- κ³N¹,O:N⁴], [Cu(C₅H₃N₂O₂)(NO₃)(H₂O)]_n, has been synthesized and characterized. The coordination environment of the copper(II) ion is distorted octahedral, arising from an N,O-bidentate 2-pyrazine­carboxyl­ate ligand, an N atom from a symmetry-related 2-pyrazine­carboxyl­ate ligand, a bidentate nitrate group and a water mol­ecule. The chains interact by way of O—H...O hydrogen bonds and C—H...O interactions.