An unusual self-penetrated metal-organic framework from mixed ligands: synthesis, structure and magnetism

The synthesis, structure and magnetic property of a new coordination network [Co-2(bcP)(2)(bpt)(2)]center dot 2H(2)O (n) (1) (H(2)bcp= 1,3-bis(4-carboxy-phenoxy)propane and bpt = 2,5-bis(4-pyridyl)-1,3,4-thiadiazole), is reported. Complex 1 shows a 3D 4(8).6(6).8 topology with unusual self-penetration, in which represents a new example of 6-connected networks. In addition, the magnetic property of 1 has also been investigated.