Diaqua-1κO,2κO-(2,2′-bi-1H-imidazole-1κ(2) N (3),N (3′))(oxalato-2κ(2) O (1),O (2))di-μ-oxido-κ(4) O:O-dioxido-1κO,2κO-dimolyb­denum(V) trihydrate

In the title compound, [Mo(2)(C(2)O(4))O(4)(C(6)H(6)N(4))(H(2)O)(2)]·3H(2)O, the coordination polyhedra for both Mo(V) atoms consist of two bridging O atoms, two atoms of the chelating ligand (oxalate or diimidazole), a terminal O atom and one H(2)O mol­ecule. The two distorted octa­hedrally coordinated Mo(V) atoms are linked together via O—O edge-sharing and Mo—Mo inter­actions with a Mo—Mo bond length of 2.564 (5) Å. Uncoordinated water mol­ecules are situated in the voids of the crystal structure. N—H⋯O and O—H⋯O hydrogen bonding between the neutral mol­ecules and the water mol­ecules lead to a consolidation of the structure.