Abstract
The reaction of Co(NO3)(2)center dot 6H(2)O with 1,3,5-benzenetricarboxylic acid (H(3)btc, trimesic acid) in DMF at 100 degrees C afforded the coordination polymer [Co-3(dmf)(6)(btc)(Hbtc)(H(2)btc)]center dot center dot 9H(2)O (1) (dmf is N,N'-dimethylformamide, DMF). According to the X-ray diffraction study, the metal-organic coordination polymer is composed of planar honeycomb (6,3) networks, in which the organic benzenetricarboxylate anions and the inorganic Co-2 cations play a role of three-connected nodes. Disordered water molecules are intercalated between the layers. A study of the magnetic properties showed the presence of a weak antiferromagnetic coupling between the Co2+ ions (S = 3/2).