Copper glutarate coordination polymers with dipyridylamide ligands: Effect of donor disposition and steric bulk on structure

A structurally diverse series of divalent copper glutarate coordination polymers incorporating dipyridylamide ligands has been prepared and structurally characterized. {[Cu2(glu)2(3-pina)]·3.5H2O}n (1, glu = glutarate, 3-pina = 3-pyridylisonicotinamide) manifests a 3D pcu network, while {[Cu(glu)(4-pna)(H2O)]·H2O}n (4, 4-pna = 4-pyridylnicotinamide) possesses a 2-fold parallel interpenetrated (6,3) herringbone lattice.