Systematic Synthesis of a Metal Organic Framework Based on Triangular Cu3(μ3-OH) Secondary Building Units: From a 0-D Complex to a 1-D Chain and a 3-D Lattice

Reactions of Cu(CF3SO3)(2) and pyrazole in methanolic solutions in the presence of stoichiometric amounts of py, py/4,4'-bpy, or 4,4'-bpy have yielded two new complexes [Cu-3(mu(3)-OH)(mu-pz)(3)(py)(3)](CF3SO3)(2)center dot 0.5H(2)O (1) and [{Cu-3(mu(3)-OH)-(mu-pz)(3)(py)(2)}(2)(mu-4,4'-bpy)](CF3SO3)(4) (2), a one-dimensional coordination polymer, {[Cu-3(mu(3)-OH)(mu-pz)(3)(py)(mu-4,4'-bPy)]-(CF3SO3)(2)center dot 0.5H(2)O}(n) (3), and a three-dimensional, 8-fold interpenetrated extended lattice, {[Cu-3(mu(3)-OH)(mu-pz)(3)(mu-4,4'-bpy)(1.5)]-(CF3SO3)(2)center dot 1.5H(2)o}(n) (4).