Hydrothermal Synthesis and Crystal Structure of Lanthanum Orotate Supermolecule with A Honeycomb Structure Constructed from Mononuclear Molecules via Hydrogen Bonds |
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| Authors: | Li Ju Yanling Li Xia Zhang Tingting Wang Chunyan Yu Jingbo |
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| Affiliation: | Department of Chemistry , Capital Normal University, Beijing 100037, China |
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| Abstract: | A new complex of lanthanum orotate La(C5H3N2O4)2(OH)(H2O)6] · 2(C5H4N2O4) · 9H2O was synthesized using a hydrothermal method. The crystal structure was determined with help of single crystal X-ray diffraction analysis. The complex crystallized in orthorhombic system, Cmc2(1) space group. In the complex, the center lanthanum (III) ion was nine-coordinated with coordination geometry of a distorted monocapped square antiprism, in which two of the nine coordinated oxygen atoms were from two orotate ligands in a monodentate mode, one oxygen atom from a hydroxyl, and the others from six coordinated water molecules. The mononuclear complex La(C5H3N2O4)2(OH)(H2O)6] · 2(C5H4N2O4) · 9H2O was linked through the hydrogen bonds into an infinite supermolecular honeycomb structure. |
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| Keywords: | lanthanum complex orotic acid hydrothermal synthesis crystal structure rare earths |
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