Abstract
Assembly of orotic acid (2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid, H3dtpc) and Cd(OAc)2·2H2O gave rise to two complexes [Cd2(H2dtpc)2(H2O)6] (I) and [Cd(H2dtpc)(bpy)(H2O)]n (II) (bpy = 2,2′-bipyridine). Complex (I) and (II) have been characterized by X-ray single crystal diffraction, IR, PXRD, TGA and fluorescence spectra. Structural analyses reveal that (I) is a binuclear structure, and complex (II) possesses a one-dimensional infinite zig-zag chain architecture and the chains are further assembled into 2D supramolecular network by strong hydrogen bonding interactions. Crystal data for (I): Monoclinic, space group P2(1)/n, a = 9.3221(19) Å, b = 6.6315(13) Å, c = 15.322(3) Å, β = 102.31(3)°, V = 925.4(3) Å3, Z = 4, R1 = 0.0269, and wR2 = 0.0604; for (II): Monoclinic, space group P2(1)/c, a = 9.9880(2) Å, b = 14.5085(2) Å, c = 11.6957(2) Å, β = 107.976(2)°, V = 1612.10(5) Å3, Z = 4, R1 = 0.0234 and wR2 = 0.0554.
Graphical Abstract
The Cadmium ions are joined by orotate ligands in different direction to complete a zig-zag chain, which are further assembled by the intermolecular hydrogen bonding to form a two-dimensional structure with remarkable thermal stability.
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Acknowledgments
The work was supported by the National Natural Science Foundation of China (20971075), the “Qianjiang Talent” Projects of Zhejiang Province (2009R10032), the Ningbo Natural Science Foundation (2010A610060, 2009A610129), the Program for Innovative Research Team of Ningbo Novel Photoelectric Materials and Devices (2009B21007) and sponsored K. C. Wong Magna Fund in Ningbo University.
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Li, X., Zha, MQ., Bing, Y. et al. Crystal Structure and Photoluminescent Properties of Two Cadmium(II) Complexes with Orotic Acid. J Chem Crystallogr 41, 823–828 (2011). https://doi.org/10.1007/s10870-011-0005-y
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DOI: https://doi.org/10.1007/s10870-011-0005-y