A Porous Supramolecular Architecture from a Copper(II) Coordination Polymer with a 3D Four-Connected 86 Net

A novel coordination polymer {[Cu(L1)(L2)(H2O)]·5H2O}n (1), where L1 =1,1ʹ-(1,4-butanediyl)bis(imidazole) and L2 = m-phthalate anion, has been obtained by using an unusual crystallization process. It crystallizes in the orthorhombic space group Pna21, which belongs to the crystal class mm2, with a = 9.0521(18), b = 15.401(3), and c = 17.141(3) (angstrom), (alpha)= (beta)= (gamma)= 90 °, V = 2389.7(8) (angstrom)3, and Z = 4. The complex 1 composing a porous supramolecular architecture displays unprecedented four-connected topology of an 8^6 net in coordination polymer chemistry. Thermal gravimetric analysis (TGA) and X-ray powder diffraction (XRPD) patterns for 1 are discussed in detail.