[Malonato(2−)-κ(2) O,O′]bis­(1,10-phenanthroline-κ(2) N,N′)zinc(II) penta­hydrate

In the title complex, [Zn(C(3)H(2)O(4))(C(12)H(8)N(2))(2)]·5H(2)O, the Zn(II) cation displays a distorted octa­hedral geometry, being coordinated by four N atoms from two 1,10-phenanthroline ligands and two O atoms from different carboxyl­ate groups of the chelating malonate dianion. In the crystal, the complexes are linked into a three-dimensional supra­molecular network by both O—H⋯O hydrogen-bonding inter­actions between water mol­ecules and the uncoordinated carboxyl­ate O atoms of neighboring mol­ecules, and aromatic π–π stacking inter­actions between neighboring phenanthroline rings with centroid–centroid distances of 3.4654 (17) and 3.697 (2) Å.