Synthesis, structure and properties of interpenetrated twofold 3D pillar-layered coordination polymers based on an N-centered tripodal ligand

Two new complexes {[M(TIPA)(tdc)(H₂O)]·H₂O}_n {M = Coⁱⁱ, Mnⁱⁱ, TIPA = tris[4-(1H-imidazol-1-yl)phenyl]amine, H₂tdc = thiophene-2,5-dicarboxylic acid} have been synthesized hydrothermally based on the N-centered tripodal ligand TIPA. These isostructural compounds exhibit twofold interpenetrated 3D pillar-layered structures with (6³)(6⁹·8) gra topology.