Syntheses, structures and properties of two new coordination polymers based on D-camphoric acid and 2-phenyl-4, 6-diamino-1,3,5-triazine

摘要

By hydrothermal method, two new coordination polymers [Co(ca)(phdat)](n), (I), [Ni(ca)(phdat).0.125H(2)O](n) (2) (H(2)ca=D-camphoric acid, phdat=2-phenyl-4,6-diamino-1,3,5-triazine) have been achieved and structurally characterized by IR, elemental analyses, X-ray single-crystal diffraction and TGA. The X-ray single-crystal diffraction reveals that compounds 1 and 2 are isostructural, both of which exhibit two-dimensional layered network built up from paddle-wheel Co-2(CO2)(4)/Ni-2(CO2)(4) SBUs by ca(2-) ligand. In the existence of pi center dot center dot center dot pi stacking interactions between triazine rings and phenyl rings, the 3D networks are constructed with the hanging phdat filled between the neighboring layers. Furthermore, compounds 1-2 exhibit antiferromagnetic behavior and compound 2 displays a good activity for methanol oxidation. (C) 2014 Elsevier Inc. All rights reserved.