New α,ω-dicarboxylate coordination polymers with 4,4′-bipyridine:: Cu(bpy)(C5H6O4), Zn(bpy)(C5H6O4), Zn(bpy)(C6H8O4) and Mn(bpy)(C8H12O4) • H2O

Four 4,4'-bipyridine alpha,omega-dicarboxylate coordination polymers Cu(bpy)(C5H6O4) (1), Zn(bpy)(C5H6O4) (2), Zn(bpy)(C6H8O4) (3) and Mn(bpy)(C8H12O4) (.) H2O (4) have been synthesized and structurally characterized by single crystal X-ray diffraction methods (bpy = 4,4-bipyridine, (C5H6O4)(2-) = glutarate anion, (C6H8O4)(2-) = adipate anion, (C8H12O4)(2-) = suberate anion). Their crystal structures are featured by dimeric metal units, which are co-bridged by 4,4'-bipyridine ligands and dicarboxylate anions such as glutarate, adipate and suberate anions to generate 2D layers with a (4,4) topology in 1, 2 and 4 as well as to form 3D frameworks in 3. Two 3D frameworks in 3 interpenetrate with each other to form a topology identical to the well-known Nb6F15 cluster compound. Over 5-300 K, the paramagnetic behavior of 4 follows the Curie-Weiss law X-m (T - Theta) = 4.265(5) cm(3) mol(-1) with the Weiss constant Theta = -6.3(2) K. Furthermore, the thermal behavior of 3 and 4 is also discussed. (C) 2005 Elsevier Ltd. All rights reserved.