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Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry Volume 37, 2007 - Issue 2
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Original Articles

Synthesis, Characterization, and Thermal Analysis of Re(C10H9N2O4)3 · nH2O Complexes

J.‐H. Wang Department of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, P. R. China
,
X.‐R. Liu Department of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, P. R. China
,
A.‐N. Zhou Department of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, P. R. ChinaCorrespondenceE-mail: [email protected]
&
S.‐Y. He Department of Chemistry, Shaanxi Key Laboratory of Physico‐Inorganic Chemistry, Northwest University, Xi'an, P. R. China
Pages 91-95 | Received 08 Nov 2006, Accepted 15 Dec 2006, Published online: 30 Mar 2007
 
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Abstract

Six new complexes of C10H10N2O4 with light rare earth ions RE(C10H9N2O4)3 · nH2O, (RE=La, Ce, Nd, Sm, Eu, Gd) have been synthesized in alcohol aqueous solution. The composition of the complexes is determined by elemental analysis, IR, UV, and X‐ray powder diffraction. The thermal decomposition processes of the six complexes were studied by TG‐DTG curves. It was found that the thermal decomposition processes of the complexes could be divided into three stages. The plot of apparent activation energies of the second thermal decomposition stage for the complexes versus the atomic number showed a grouping effect of the lanthanide elements.

Financial supports from the National Natural Science Foundation of China under grant no. 2971023 are gratefully acknowledged. The authors also thank Prof. H. W. Cai and Dr. F. S. Yang for their help during experiments.

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