Entangled coordination networks with inherent features of polycatenation, polythreading, and polyknotting

Caught in a net: Self-assembly of nickel salts with 4,4′-bipyridine and the long V-shaped 4,4′-oxybis(benzoate) ligand has led to three different coordination networks: a parallel polycatenation of nanotube motifs to give a layered framework (see picture), a 2D → 3D polythreaded array involving five polymeric units at a time, and a 3D self-penetrating binodal network with an unprecedented (4.82) (4.64.8 4.10) topology. (Figure Presented).