Hydrothermal synthesis, crystal structures and properties of two new coordination polymers constructed from a flexible pyridinecarboxylate

Abstract

Two new coordination polymers with the same topological structure, [Zn(L)]_2n·n(H₂O) (1) and [Co(L)]_2n·n(H₂O) (2) (H₂L = 5-(pyridin-2-ylmethoxy)-isophthalic acid), have been hydrothermally synthesized by reactions of metal salts and H₂L. Single crystal X-ray analyses reveal that 1 and 2 are isostructural and crystallize in orthorhombic, chiral P2₁2₁2 space group. These compounds feature 2D undulated layer structures with (3,6)-connected kgd topology, which further extended into a 3D suparmolecular framework via intermolecular hydrogen bonds. In addition, the luminescent properties of 1 and 2 and the magnetic property of 2 were also investigated.