Reaction of nanometer-sized tripodal ligand 2, 4, 6-tris [4-(imidazol-1-ylmethyl) phenyl]-1, 3, 5-triazine (timpt) with lead (II) nitrate affords a novel polycatenated structure containing three interpenetrating 4.82 networks, in which the lead (II) atom has a hemidirected coordination geometry and a stereochemically active lone pair of electrons.