Metal-Organic Framework Based on an Anthracene Tetracarboxylate Ligand and Cadmium or Cobalt: Synthesis, Structure Analysis, Stability and Magnetic Properties

Metal-organic frameworks, a class of porous polymeric materials, are presenting a development on the interface between molecular coordination chemistry and materials science and are becoming one of the hottest research topics in chemistry. Two new metal-organic frameworks, [M'(2){Co-3(ACTBA)(2)}](n)(1; M'=monocation) and [(NH2Et2)(2){Cd-3(ACTBA)(2)}](n)(2) (H(4)ACTBA=2,6,9,10-tetrakis(p-carboxyphenyl)anthracene), composed of trinuclear Co or Cd moieties connected by anthracene tetracarboxylate ligands are presented here, which are highly stable on removal of solvent inside the pores. The synthesis, X-ray structure analysis, NMR spectroscopy (for2), chemical and thermal stability, and magnetic properties (for1) are discussed.