Research Article: catena-Poly[[[aqua­bis­(4,4′-bipyridine-κN)zinc]-μ-l-tyrosinato-κ3N,O1:O1′] nitrate dihydrate]

Date Published: July 01, 2011

Publisher: International Union of Crystallography

Author(s): Shu-Qiang Li, Ning-Hai Hu.


In the title compound, {[Zn(C9H10NO3)(C10H8N2)2(H2O)]NO3·2H2O}n, the ZnII atom is six-coordinated in a distorted octa­hedral geometry by two carboxyl­ate O atoms and one amino N atom from two l-tyrosinate ligands, two N atoms from two 4,4′-bipyridine ligands, and one water mol­ecule. Adjacent Zn atoms are bridged by the bidentate carboxyl­ate groups into a cationic chain extending along [010]. N—H⋯N, O—H⋯N and O—H⋯O hydrogen bonds link the cationic chains, nitrate anions and uncoordinated water mol­ecules into a supra­molecular network. π–π inter­actions between the pyridine rings and between the pyridine and benzene rings [centroid–centroid distances = 3.615 (4) and 3.636 (4) Å] are present.

Partial Text

For general background to the structures and properties of chiral coordination polymers, see: Dai et al. (2005 ▶); Kesanli & Lin (2003 ▶); Vaidhyanathan et al. (2006 ▶); Zaworotko (2001 ▶). For related structures, see: Lou & Hong (2008 ▶); Lou et al. (2005 ▶, 2007 ▶); Zhang & Hu (2009 ▶).




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