An acyl­amide metal–organic framework with an unprecedented four-connecting trinodal topology and amide oxygen coordination

A three-dimensional Zn^II coordination polymer with bridging benzene-1,4-di­carboxyl­ate and N¹,N³,N⁵-tris­[(pyridin-3-yl)meth­yl]benzene-1,3,5-tricarboxamide ligands is characterized by a rare (4,4,4)-connected (4.6².7².8)(4.6².7³)(4².6².7²) topology. The tricarboxamide ligand adopts an unprecedented tetra­dentate coordination mode, with one carboxamide O atom participating in the coordination.