ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

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, Δ_c U, were determined by a precise rotating-bomb calorimeter at 298.15 K. Their standard molar enthalpies of combustion, Δ_c H _m ^o , and standard molar enthalpies of formation, Δ_f 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)