Diaqua(oxydiacetato‐κ 3 O , O ′, O ′′)(pyridine‐3‐carboxamide‐κ N 1 )copper(II)

In the mononuclear title compound, [Cu(C 4 H 4 O 5 )(C 6 H 6 N 2 O)(H 2 O) 2 ], the Cu II centre is bound to a chelating oxydiacetate ligand, a monodentate pyridine‐3‐carboxamide unit and two water molecules, defining an octahedral coordination where the first two ligands form the equatorial plane and the last two occupy the apical sites. The planar oxydiacetate ligand is slightly disordered at its central ether O atom. The availability of efficient donors and acceptors for hydrogen bonding results in a complex interaction scheme where each monomer links to six similar units to define a well connected three‐dimensional structure. A comparison is made with related structures in the literature, and the reasons for their differences are discussed.