Divalent metal diphenate dipyridylamine coordination polymers: Supramolecular polytypism and a rare 5-connected topology based on arc-like hexanuclear clusters

Divalent metal diphenate (dip) coordination polymers incorporating 4,4′-dipyridylamine (dpa) ligand have been synthesized and structurally characterized. {[Cd6(dip)6(H2O)4(dpa)4]·5H2O}n features [Cd6(dip)6(H2O)4] arc-like hexanuclear clusters that link to form a complicated 5-connected 4466nov 3-D topology.