Two-Dimensional Mixed-Ligand Metal-Organic Framework Constructed from Bridging Bidentate V-Shaped Ligands

A two-dimensional and bifunctional pillar-layered metal-organic framework (MOF)-with the molecular formula [Zn(cba)(bpdb)] center dot DMF (2DTMU-1), H(2)cba = 4,4'-methylenedibenzoic acid, bpdb = 1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene-was obtained via the reaction of zinc(II) nitrate with H(2)cba as the carboxylate linker and bpdb as the N-donor pillar. 2DTMU-1 is based on a binuclear paddlewheel Zn(II) unit complexed by four bridging bidentate (dicarboxylate) V-shaped ligands, which combine to from H(2)cba; this tetragonal array, which is connected by bpdb with a bridging azine group, presents a pore size of 18 x 12 angstrom(2).