کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1260211 | 971727 | 2007 | 5 صفحه PDF | دانلود رایگان |
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.
Journal: Journal of Rare Earths - Volume 25, Issue 6, December 2007, Pages 770–774