Hydrothermal Synthesis and Crystal Structure of a 2D Zinc(II) Coordination Polymer with 5-Hydroxynicotinic Acid

作者：Zhang Jin; Chen Hong-Ji^*; Huang Jing

来源：Chinese Journal of Structural Chemistry, 2011, 30(7): 1069-1073.

• hydrothermal synthesis
• 5-hydroxynicotinic acid
• coordination polymers
• crystal structure

The title compound, [Zn(5-hydroxynicotinate)(2)center dot 2H(2)O](n), has been synthesized by reacting zinc sulfate vitriol with 5-hydroxynicotinic acid under hydrothermal conditions, and its structure was determined by X-ray crystallography with the following data: monoclinic, space group C2/c, C12H12N2O8Zn, M-r = 377.61, a = 10.223(3), b = 10.319(3), c = 13.613(4) angstrom, beta = 105.922(6)degrees, Z = 4, V = 1380.9(8) angstrom(3), F(000) = 768, D-c = 1.816 g/cm(3), mu(MoK alpha) = 1.826 mm(-1), the final R = 0.0401 and wR = 0.1380 for 1157 observed reflections (I > 2 sigma(I)). In the structure of the title compound, the Zn-II ion located in an inversion center lies in a distorted tetrahedral environment at a N2O2 coordination mode, and the 5-hydroxynicotinic acid ligand links symmetry-related Zn-II ions at a mu(2)-N,O bridging way forming a two-dimensional covalent structure. In the crystal, solvent water molecules form intermolecular O-H center dot center dot center dot O hydrogen bonds and pyridine rings of adjacent layers form pi-pi stacking (3.346 angstrom), which connect adjacent two-dimensional sheets into a three-dimensional supramolecular network.

• 出版日期2011
• 单位暨南大学