A New Type of Entanglement Involving Ribbons of Rings and Two Different Kinds of 2D (4,4) Networks (2D + 2D + 1D) Polycatenated in a 3D Supramolecular Architecture

The reaction of copper(II) nitrate with the flexible ligand 1,3-bis(1,2,4-triazol-1-yl)propane (btrp) and rigid ligand 5-sulfoiso-phthalic acid monosodium salt (NaH2SIP) affords the novel (2D + 2D + 1D) supramolecular architecture{[Cu3(btrp)4(SIP)2(H2O)4][Cu(btrp)(SIP)(H2O)][Cu0.5(btrp)(H2O)]·5H2O}n (1), containing ribbons of rings and two kinds of planar 2D (4,4) networks polycatenated with each other, and two different 3D coordination networks [Cu(btrp)(HSIP)]n (2) and {[Cu(btrp)(SIP)(H2O)][Cu0.5(btrp)(H2O)]·5H2O}n (3) were obtained by changing the alkali or ligand/alkali ratio.