Poly[[diaqua-μ-4,4′-bipyridine-dinitratodi-μ-l-tyrosinato-dicopper(II)]: a chiral two-dimensional coordination polymer

• Published in: Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2009-01, Vol.65 (1), p.m7-m9
• Main Authors: Zhang, Shuo, Hu, Ning-Hai
• Format: Article
• Language: English
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S0108270108038985

The title compound, [Cu2(C9H10NO3)2(NO3)2(C10H8N2)(H2O)2]n, contains CuII atoms and l‐tyrosinate (l‐tyr) and 4,4′‐bipyridine (4,4′‐bipy) ligands in a 2:2:1 ratio. Each Cu atom is coordinated by one amino N atom and two carboxylate O atoms from two l‐tyr ligands, one N atom from a 4,4′‐bipy ligand, a monodentate nitrate ion and a water molecule in an elongated octahedral geometry. Adjacent Cu atoms are bridged by the bidentate carboxylate groups into a chain. These chains are further linked by the bridging 4,4′‐bipy ligands, forming an undulated chiral two‐dimensional sheet. O—H...O and N—H...O hydrogen bonds connect the sheets in the [100] direction. This study offers useful information for the engineering of chiral coordination polymers with amino acids and 4,4′‐bipy ligands by considering the ratios of the metal ion and organic components.