Divalent metal 1,3-phenylenediacetate coordination polymers with rigid or flexible dipyridyl tethers: Chains, layers, and interpenetrated networks

Hydrothermal synthesis has afforded four divalent metal 1,3-phenylenediacetate (1,3-phda) coordination polymers containing different dipyridyl-type ligands. {[Co(1,3-phda)(bpy)]·1.5H2O}n (2, bpy = 4,4′-bipyridine) has a layered structure with antiferromagnetically coupled {Co2(OCO)2} dimeric kernels. {[Ni(1,3-phda)(4-bpmp)(H2O)2]·2H2O}n (4, 4-bpmp = bis(4-pyridylmethyl)piperazine) has an underlying twofold interpenetrated 658 (cds) 3-D network topology.