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

摘要

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{[Cu_3(btrp)_4(SIP) _2(H_2O)_4][Cu(btrp)(SIP)(H_2O)][Cu _(0.5)(btrp)(H_2O)]·5H_2O}_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)(H_2O)][Cu _(0.5)(btrp)(H_2O)]·5H_2O}_n (3) were obtained by changing the alkali or ligand/alkali ratio.