Acta Phys. -Chim. Sin. ›› 2006, Vol. 22 ›› Issue (03): 280-285.doi: 10.1016/S1872-1508(06)60003-X

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Synthesis, Characterization and Thermochemistry Properties of RE(III) and 2-oxo-propionic Acid Salicyloyl Hydrazone Complexes

CHEN Feng-Ying; CAO Wen-Kai; HE Shui-Yang; WANG Bao-Huai; ZHANG You-Min   

  1. Department of Chemistry, Shaanxi Key Laboratory of Physical-Inorganic Chemistry, Northwest University, Xi′an 710069, P. R. China; College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2005-08-01 Revised:2005-10-15 Published:2006-03-10
  • Contact: HE Shui-Yang E-mail:xdchemistry411@126.com

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Abstract: A series of new light rare earth complexes of RE(C10H9N2O4)(C10H8N2O4)•nH2O (RE = La, Ce, Pr, Nd, Sm, Eu, Gd) have been synthesized. The composition of the complexes is determined by elemental analysis, IR, UV, fluorescence and XRD. The enthalpies of dissolution for the complexes in DMF were measured and it was found that the correlation of the enthalpies of dissolution for the complexes and atomic number was not monotonic. The enthalpy of dissolution curves of the light rare earth complexes are regarded as the front two groups of “quadripartite effect”.

Key words: Rare earth, 2-oxo-propionic acid salicyloyl hydrazone, Synthesis, Enthalpy of dissolution