Three New cpt‐Metal Complexes Displaying 0D, 1D,and 3D Topology Structures

Three new cpt‐metal complexes of different topology structures were synthesized by solvothermal methods Hcpt = 4‐(4‐carboxyphenyl)‐1,2,4‐triazole]. The structure of Mn(cpt)₂ · 2H₂O] ( 1 ) is essentially 0D monomeric, but extended into a 2D supramolecular network through cross‐linking hydrogen bonds. In Cu(cpt)(OH) · 2H₂O] · 2H₂O ( 2 ), the hydroxo groups as well as cpt ligands join the copper ions into an infinite polymeric Cu(μ‐cpt)(μ‐OH)] chain, which is interconnected into a 3D supramolecular network with different oriented channels by 1D water chains. The complex Zn(cpt)₂] · 0.5DMF · CH₃CH₂OH ( 3 ), which crystallizes in a 3D open framework with fourfold interpenetrated diamondoid network topology, represents the first 3D structure based on cpt anions. The structure differences demonstrate that the reaction metal ions have an important effect on the structures of these complexes.