Chemical Research in Chinese Universities ›› 2009, Vol. 25 ›› Issue (5): 719-725.

• Articles • Previous Articles     Next Articles

Preparation, Characterization and Thermal Decomposition Kinetics of the Complexes [Dy(p-NBA)3Phen]2·3H2O and [Dy(m-NBA)3Phen]2·4H2O

XU Su-ling1,2, ZHU Zhi-jia3, Ren Ning4, LIU Hong-mei5, ZHANG Jian-jun1*, TIAN Liang1 and HU Rui-sheng6   

  1. 1. Experimental Center, Hebei Normal University, Shijiazhuang 050016, P. R. China;
    2. Department of Engineering, Shijiazhuang Foreign Economy and Trade Vocational College, Shijiazhuang 050061, P. R. China;
    3. College of Chemistry, Chemical Engineering and Biotechnology, Donghua University,  Shanghai 201620, P. R. China;
    4. Department of Chemistry, Handan College, Handan 056005, P. R. China;
    5. College of Chemistry and Pharmacy Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, P. R. China;
    6. School of Chemical Engineering, Shijiazhuang College, Shijiazhuang 050035, P. R. China
  • Received:2009-10-29 Revised:2008-12-11 Online:2009-09-25 Published:2009-12-07
  • Contact: ZHANG Jian-jun. E-mail: jjzhang6@126.com
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.20773034), the Natural Science Foundation of Hebei Province, China(No.B2007000237) and the Science Foundation of Hebei Normal University, China(No.L2006Z06).

Abstract:

The title complexes [Dy(p-NBA)3Phen]2·3H2O(I) and [Dy(m-NBA)3Phen]2·4H2O(II) were synthesized, in the two molecular formulas of which NBA is nitrobenzoate and Phen is 1,10-phenanthroline. The characterizations of the complexes were carried out by means of elemental analysis, UV, IR, XRD and molar conductivity. The thermal decomposition of the two complexes were studied under the non-isothermal condition by DSC, TG-DTG and IR methods in detail. The kinetic parameters of the dehydration process were also obtained by the analysis of DSC curves of the two complexes with Popescu and Vyazovkin methods, respectively,

Key words: Dysprosium(III) complex; Nitrobenzoate; Non-isothermal kinetics; 1,10-Phenanthroline; Thermal decomposition