Construction of a three-fold parallel interpenetration network and bilayer structure based on copper(II) and trimesic acid

Solvothermal reactions of Cu(NO3)(2)center dot 3H(2)O with trimesic acid (H3BTC) at different pH conditions yield two coordination polymers of [Cu-3(BTC)(2)(H2O)(3)(NH3)(4)](n)center dot 2nH(2)O (1) and [Cu-4(BTC)(2)(OH)(2)(H2O)(2)(NH3)(4)](n) (2). Crystal structural analysis reveals that complex 1 exhibits a three-fold parallel interpenetration network and complex 2 shows a two-dimensional bilayer structure. Crystal data are orthorhombic, space group Pbcn, a = 11.242(3) angstrom, b = 16.963(4) angstrom, c = 13.898(4) angstrom, Z = 4 for 1 and monoclinic, space group C2/c, a = 18.887(4) angstrom, b = 10.761(2) angstrom, c = 14.488(3) angstrom, beta = 126.100(3)degrees, Z = 4 for 2.