The synthesis, structure and physical properties of lanthanide(III) complexes with nicotinic acid
- 183 Downloads
This article reports the synthesis of novel, rare-earth coordination complexes with nicotinic acid. Three compounds with the general formula Ln2[(C5H4NCOO)6(H2O)4] (Ln = Yb, 1; Ln = Gd, 2; Ln = Nd, 3) were prepared from relatively cheap and readily available reactants. Their compositions and structure were characterized by IR spectroscopy and single-crystal X-ray diffraction. The magnetic and thermogravimetric properties were also studied. The complexes consist of centrosymetric, dimeric molecules having all six nicotinato ligands coordinated with the central atom in the bidentate mode. The coordination environment of the Ln3+ for all three compounds is 8. Here we describe the crystal structure of Yb and Gd complexes with nicotinic acid.
KeywordsLanthanides Nicotinic acid Magnetic properties X-ray structure determination Hydrogen bonds
Unable to display preview. Download preview PDF.
- J.W. Moore, M.D. Glick, W.A. Baker Jr., Am. Chem. J. 94, 6 (1971)Google Scholar
- L. Shuangxi, J. Linpei, Nat. Sci. 32, 96 (1996)Google Scholar
- W.T. Chen, Acta. Chim. Slov. 58, 144 (2011)Google Scholar
- Q.H. Jin, X. Li, Y.Q. Zou, K.B. Yu, Z. Kristallogr. 218, 45 (2003)Google Scholar
- K. Binnemans, Rare earths β-diketonates in Handbook on the Physics and Chemistry of Rare Earths (Elsevier, Amsterdam, 2005)Google Scholar
- CrysAlis PRO. Version 22.214.171.124 (Agilent Technologies, Yarnton, Oxfordshire, England, 2011)Google Scholar
- V.L. Dorofeev, Pharm. Chem. J. 38, 12 (2004)Google Scholar
- O. Khan, Molecular Magnets (VCH Publishers Inc., New York, 1993)Google Scholar
© Versita Warsaw and Springer-Verlag Wien 2014