A two-dimensional cadmium(II) coordination polymer based on 5-(pyridin-4-yl)isophthalic acid: poly[[tetraaquabis[μ₃-5-(pyridin-4-yl)isophthalato]dicadmium(II)] pentahydrate

Acta Crystallographica. Section C, Structural Chemistry
Fang LiuQingfu Zhang

Abstract

The title Cd(II) compound, {[Cd2(C13H7NO4)2(H2O)4]·5H2O}n, was synthesized by the hydrothermal reaction of Cd(NO3)2·4H2O and 5-(pyridin-4-yl)isophthalic acid (H2L). The asymmetric unit contains two crystallographically independent Cd(II) cations, two deprotonated L(2-) ligands, four coordinated water molecules and five isolated water molecules. One of the Cd(II) cations adopts a six-coordinate octahedral coordination geometry involving three O atoms from one bidentate chelating and one monodentate carboxylate group of two different L(2-) ligands, one N atom of another L(2-) ligand and two coordinated water molecules. The second Cd(II) cation adopts a seven-coordinate pentagonal-bipyramidal coordination geometry involving four O atoms from two bidentate chelating carboxylate groups of two different L(2-) ligands, one N atom of another L(2-) ligand and two coordinated water molecules. Each L(2-) ligand bridges three Cd(II) cations and, likewise, each Cd(II) cation connects to three L(2-) ligands, giving rise to a two-dimensional graphite-like 6(3) layer structure. These two-dimensional layers are further linked by O-H···O hydrogen-bonding interactions to form a three-dimensional supramolecular architecture. The photoluminescence ...Continue Reading

References

Dec 25, 2007·Acta Crystallographica. Section A, Foundations of Crystallography·George M Sheldrick
Jan 28, 2009·Acta Crystallographica. Section D, Biological Crystallography·Anthony L Spek
Apr 23, 2009·Chemical Society Reviews·Mohamedally Kurmoo
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Jun 22, 2011·Chemical Reviews·Yuanjing CuiBanglin Chen
Jul 19, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Ye DengSeik Weng Ng
May 30, 2014·Chemical Society Reviews·Jiewei LiuCheng-Yong Su
Jan 9, 2015·Acta Crystallographica. Section C, Structural Chemistry·George M Sheldrick
Jun 20, 2015·Journal of Applied Crystallography·Lennard KrauseDietmar Stalke

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