Structure Evolution and Thermal Decomposition of Supramolecular and Lamellar Hybrid Sulfates Templated by 4-Aminopyridinium

The aromatic diamine 4-aminopyridine was used for the synthesis of a series supramolecular metal–organic sulfate salts. obtained compounds with formula (C5H7N2)2[MII(H2O)6](SO4)2 (MII = Fe, Co, Ni, Cu and Zn) (C5H7N2)2[Mn(H2O)4(SO4)2] crystallize triclinic symmetry (S.G. P $$\overline{1 }$$ ). These complexes possess hybrid structure type an interlayer distance that varies from 10 to 12 Å depending on metal. aspect crystal is manifested through mineral layers, which are built up uniquely hydrogen bonds. space filled diamines form chains π⋯π interactions. thermal study in-situ all metal revealed important stability formation crystalline phases during heating. dehydration proceeds differently according incorporated into structure.