(2,2′-bipyridine-N,N′)(7-oxabicyclo[2.2.1]heptane-2-exo,3-exo-dicarboxylato-κ3O2,3,7)-manganese(II)-7-oxabicyclo[2.2.1]heptane-2-exo,3-exo-dicarboxylic acid-water (1/1/1)

In the title compound, [Mn(C8H8O5)(C10H8N2)] . C8H10O5 . H2O, the Mn2+ ion is in an approximate six-coordinate octahedral environment composed of four O atoms, arising from tridentate chelation by one bicyclic ligand (L) and by one O atom of another L ligand, and two bipyridine N atoms. The complex entities are connected by carboxylate bridges into infinite zigzag chains. The uncoordinated molecules of the free acid (H2L) are doubly hydrogen bonded into dimers, which are in turn linked to the complex chains through hydrogen bonds via the water molecules.