Isomer dependent self-penetrated topologies and cluster subunits in copper phenylenediacetate coordination polymers with flexible dipyridyl ligandsElectronic supplementary information (ESI) available: TGA traces for 1 and 2 and crystallographic data (excluding structure factors) for 1 and 2. CCDC reference numbers 753269 and 753270. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/b926914b

Divalent copper coordination polymers containing flexible dipyridylpropane (dpp) and phenylenediacetate (phda) ligands display different metal cluster subunits and self-penetrated three-dimensional (3-D) topologies, depending on the disposition of the pendant arms within the anionic components. [Cu 2 (1,3-phda) 2 (dpp)] n ( 1 ) possesses dinuclear {Cu 2 (OCO) 4 } paddlewheel subunits linked into a 6-connected self-penetrated rob lattice with 4 8 6 6 8 topology. {[Cu 4 (1,4-phda) 3 (OH) 2 (dpp) 2 ]·2H 2 O} n ( 2 ) manifests non-cubane tetrameric {Cu 4 (OH) 2 } 6+ kernels, connected into an 8-connected self-penetrated ilc lattice with 4 24 5.6 3 topology. Antiferromagnetic coupling within the metal cluster subunits is observed in both 1 and 2 . Copper coordination polymers containing dipyridylpropane (dpp) and phenylenediacetate (phda) ligands display self-penetrated topologies. [Cu 2 (1,3-phda) 2 (dpp)] n ( 1 ) possesses a self-penetrated rob lattice. {[Cu 4 (1,4-phda) 3 (OH) 2 (dpp) 2 ]·2H 2 O} n ( 2 ) has an 8-connected self-penetrated ilc topology.