Abstract: | The title compound, {(C12H13N2)2[Mo5O16]}n, was synthesized under hydrothermal conditions. The structure contains a two‐dimensional layer, constructed from [(Mo4O14)n]4n− chains linked through MoO6 octahedra, which lie across twofold axes. The [(Mo4O14)n]4n− chain consists of [Mo4O14]4− clusters connected to one another by sharing their MoO5 square‐pyramidal and MoO6 octahedral vertices in an anti disposition. The layers are linked by the cation, to which they are connected via N—H⋯O hydrogen bonds. |