The first 'two-over/two-under' (2O/2U) 2D weave structure assembled from Hg-containing 1D coordination polymer chains

Self-assembly of HgI2 with a semirigid ditopic 'Z' type ligand affords the zigzag chains that interweave into a clothlike 2D network in a 'two-over/two-under' (2O/2U) fashion.