Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (02): 290-296.doi: 10.3866/PKU.WHXB201112121

• THERMODYNAMICS, KINETICS, AND STRUCTURAL CHEMISTRY • Previous Articles     Next Articles

Synthesis, Characterization and Thermal Decomposition Mechanism of Rare Earth Complexes with 5-Chloro-2-methoxybenzoic Acid and 1,10-Phenanthroline

ZHANG Jie1,2, WANG Juan-Fen2, ZHANG Jian-Jun2   

  1. 1. Shijiazhuang Pharmaceutical Group, Hebei Zhongrun Pharmaceutical Co., Ltd., Shijiazhuang 050041, P. R. China;
    2. Experimental Center, Hebei Normal University, Shijiazhuang 050016, P. R. China
  • Received:2011-09-02 Revised:2011-11-28 Published:2012-01-11
  • Contact: ZHANG Jian-Jun E-mail:jjzhang6@126.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20773034, 21073053).

Abstract: Three rare earth complexes of [Ln(5-Cl-2MOBA)3phen]2 (Ln=Nd(1), Eu(2), Ho(3); 5-Cl- 2MOBA: 5-chloro-2-methoxybenzoate; phen: 1,10-phenanthroline) were synthesized and characterized by elemental analysis, thermogravimetry-differential thermogravimetry-differential scanning calorimetry (TG-DTG-DSC), infrared (IR) spectra, ultraviolet (UV) spectra, and molar conductance techniques. The fluorescence spectra showed that complex (2) emitted a characteristic fluorescence of the Eu3+ ions. The thermal properties are discussed by thermogravimetry - differential scanning calorimetry / Fourier transform infrared (TG-DSC/FTIR) techniques. And the three-dimensional IR accumulation spectra for the three complexes were also analyzed.

Key words: Rare earth complex, Thermal decomposition mechanism, Three-dimensional infrared accumulation spectrum, Evolved gas, Thermogravimetry-differential scanning calorimetry

MSC2000: 

  • O642