Architecture of 2D sheets with six-membered rings of coppers interconnected by 2,1,3-benzothiadiazoles and a layered structure composed of the 2D sheets

Design of a two-dimensional sheet containing six-membered rings of metal ions, interlinked by aromatic ligands, involve an extremely-favored combination of three- or four-coordinate metal ions and ligands with 1,2, 5-thiadiazole and pyrazole frames. The ring frame, which divides the orientation of the aromatic ligand, can be deformed and the aromatic ligand between the sheets can be stacked because of the coordination of a specific counteranion to the metal ion.