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Original Articles

Hydrothermal Synthesis, Crystal Structure, and Properties of Nickel(II) Coordination Polymer with 2,2′‐Bipyridyl‐3,3′‐dicarboxylate

, , , , , & show all
Pages 313-321 | Received 08 Oct 2002, Accepted 07 Oct 2003, Published online: 16 Nov 2010
 

Abstract

The polymeric complex [Ni(bpdc)(H2O)2] n (bpdc, 2,2′‐bipyridyl‐3,3′‐dicarboxylate dianion) which consist of [Ni(bpdc)(H2O)2] units was synthesized using a hydrothermal method. Its crystal structure was determined by x‐ray crystal diffraction as 1‐D chain‐like polymer. In [Ni(bpdc)(H2O)2] n , each bpdc bridges a Ni(II) pair in a unique tetradentate fashion through its two pyridine nitrogen atoms and two oxygen atoms of two carboxyl groups. Each Ni(II) cation has a slightly distorted octahedral coordination environment where the equatorial plane includes the two nitrogen atoms of one bpdc ligand and two oxygen atoms of another bpdc anion, while the axial positions are occupied by two oxygen atoms of two coordinated water molecules. In the polymeric complex the complicated hydrogen‐bonding network and π–π stacking interaction play an important role for its thermostability.

Acknowledgments

This work was supported by the Natural Science Foundation of Henan Education Department (20011500001) and the Natural Science Foundation of Henan Province (0211020300).

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