One-Dimensional Network of Zinc(II) Coordination Polymer with 4,4'-Bipyridine (4,4'-bipy)

Abstract

The design and synthesis of novel coordination architectures are of great interest in coordination chemistry and solid-state chemistry. The field of crystal engineering using bridging organic amine ligands with transition metals to form coordination polymers continues to be interesting due to their many applications, both actual as well as potential. The 4,4'-bipy ligand and its analogues have been used in much of this work. The coordination polymers bearing 4,4'bipy ligands have been shown to form a wide range of interesting network topologies, for example, chains, ladders, grids, and adamantoid networks, and 4,4'-bipy as bifunctional ligand has a great of advantages for the construction of porous organic-inorganic hybrid solids: (a) it has a long spacer that allows for constructing microporous materials with large cavities or channels; (b) it possesses straight connection modes that will lead to infinite ladder or grid architectures; (c) it has a strong capability of hydrogen bonding that plays an important role in the assembly of supramolecular compounds. Based on this strategy, despite the thousands of structure already reported with 4,4'-bipy, we focus to extend the yet undiscovered structural variety of M-4,4'-bipy systems. In this work, we report on a new zinc coordination polymer assembled using 4,4'-bipyridine as a spacer ligand and acetate anion, namely [Zn2(OAc)4(4,4'-bipy)2]n (1).