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Synthesis and characterization of the rare-earth complexes with salicylic acid

Y. Xuwu, S. Wujuan, K. Congyu, Z. Li, Z. Hangguo, and G. Shengli

Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of Chemistry, Northwest University, Xi’an Shaanxi, 710069, P. R. China

 

E-mail: yangxuwu@nwu.edu.cn

Received: 7 June 2005  Revised: 20 October 2005  Accepted: 25 October 2005

Abstract: Seven rare-earth complexes with salicylic acid RE(HSal)3·nH2O (HSal = C7H5O3; RE = La-Sm, n = 2; RE = Eu, Gd, n = 1) were synthesized and characterized by elemental analysis, the IR spectrum, and cyclic voltammetry. The constant-volume combustion energies of complexes, Δc U, were determined by a precise rotating-bomb calorimeter at 298.15 K. Their standard molar enthalpies of combustion, Δc H m o , and standard molar enthalpies of formation, Δf H m o , were calculated.

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-006-0024-x

 

Chemical Papers 60 (2) 132–137 (2006)

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