A new 3D fourfold interpenetrated metal-organic framework, [Co(L)(2)(SO4)]center dot H2O (1), has been synthesized by the solvothermal reaction of L with CoSO4 center dot 6H(2)O (L = 1,4-bis(imidazolyl)benzene). Compound 1 crystallizes in the monoclinic space group P2(1)/n, with the cell parameters: a = 9.943(2), b = 21.7104(15), c = 13.2658(18) angstrom, ss = 97.638(3)degrees, V = 2838.2(8) angstrom(3), R-1 = 0.0566 and wR(2) = 0.1035. It represents a novel dia net, in which the cobalt atoms are alternately bridged by the imidazolyl N atoms of the ligands L into a three-dimensional network. C...
