Aqua(di-2-pyridylamine-kappa2N,N')(malonato-kappa2O,O')copper(II) monohydrate.

In the structure of the title complex, [Cu(C3H2O4)(C10H8N3)(H2O)].H2O or [Cu(mal)(dpyam)(H2O)].H2O, where mal is malonate and dpyam is di-2-pyridylamine, the Cu(II) atom displays square-pyramidal geometry, being coordinated by two N atoms from the dpyam ligand, two O atoms from the mal group and one O atom of a water ligand. The complex molecules are linked to form a three-dimensional network by hydrogen-bonding interactions between coordinated/uncoordinated water molecules and the uncoordinated malonate N and O atoms of neighboring molecules.