Pillared cobalt-organic framework with an unprecedented (3,4,6)-connected architecture showing the coexistence of spin canting and long-range magnetic ordering

A novel (3,4,6)-connected 3D porous cobalt-organic framework formulated as {[Co-2(Hbidc)(2)(bpt)(2)]center dot 7H(2)O}(n) (1) (H(3)bidc = 1H-benzimidazole-5,6-dicarboxylic acid, bpt = 1H-3,5-bis(4-pyridyl)-1,2,4-triazole) has been hydrothermally synthesized and characterized by X-ray diffraction analysis. Compound 1, having a Co-Hbidc layer structure in which the layers are pillared by the bpt spacers in a 3D architecture, exhibits the coexistence of spin-canted weak ferromagnetism with T-N = 10 K and long-range magnetic ordering.