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

A novel coordination polymer {[Cu(L 1 )(L 2 )(H 2 O)].5H 2 O} n (1), where L 1 =1,1'-(1,4-butanediyl)bis(imidazole) and L 2 = m-phthalate anion, has been obtained by using an unusual crystallization process. It crystallizes in the orthorhombic space group Pna2 1 , which belongs to the crystal class mm2, with a = 9.0521(18), b = 15.401(3), and c = 17.141(3) A, a = β = y = 90°, V= 2389.7(8) A 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.