metal-organic compounds
Open access
In the title compound, [Co(C14H8O5)(C12H8N2)]n, the CoII atom is six-coordinated in a distorted octahedral coordination geometry by four O atoms from two chelating carboxylate groups from different 2,4′-oxydibenzoate anions and by two N atoms from a 1,10-phenanthroline (phen) ligand. The two benzene rings of the 2,4′-oxydibenzoate ligand form a dihedral angle of 77.14 (16)°. Adjacent CoII atoms are bridged by 2,4′-oxydibenzoate anions to form a helical chain that propagates along the b-axis direction. Neighboring chains are further assembled by intermolecular π–π stacking interactions between inversion-related phen ligands [centroid-to-centroid distance = 4.0869 (8) Å] to form a two-dimensional supramolecular architecture.
organic compounds
Open access
In the title salt, C12H10NO2+·NO3−, the dihedral angle between the pyridine ring and the benzene ring of the 4-(3-carboxyphenyl)pyridinium cation is 30.14 (2)°. Inversion-related pairs of cations are linked into dimers by pairs of O—HO hydrogen bonds. Pairs of dimers are linked by N—HO and C—HO hydrogen bonds involving nitrate anions as acceptors, generating supramolecular chains along the diagonal of the bc plane.