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Synthesis and Characterization of Binuclear Lanthanide Complexes with Macrocyclic Schiff Base Derived From 2,6-Diacetylpyridine and 1,3-Diamino-2-hydroxypropane
作者姓名:ZHENG Hui  YAN Shi-ping  CHENG Peng  LIAO Dai-zhengJIANG Zong-hui and WANG Geng-lin
作者单位:Department of Chemistry,Nankai University,Tianjin,300071
基金项目:Supported by the National Natural Science Foundation of China
摘    要:Nine homobinuclear lanthanide complexes with macrocyclic Schiff base were prepared by condensing 2, 6-diacetylpyridine and 1, 3-diamino-2-hydroxypropane in the presence of template lanthanide metal ions. These complexes were characterized by elemental analysis, IR, molar conductance and magnetic susceptibility. The variable-temperature magnetic susceptibility (4-300 K) of complexes of Gd( Ⅲ ) and Dy( Ⅲ ) was determined. A satisfactory fit to theoretical curve derived from spin Hamiltonian operator was obtained using least-squares method. The exchange interaction parameters are J=-0.26 cm-1, g=1.98 and △=0.06 cm-1, Z.J'=-0. 21 cm-1,g'=1.33 for Gd( Ⅲ ) and Dy( Ⅲ ), respectively. The results indicate a very week antiferromagnetic interaction between Gd( Ⅲ )-Gd( Ⅲ ) and Dy( Ⅲ )-Dy( Ⅲ ) ions.


Synthesis and Characterization of Binuclear Lanthanide Complexes with Macrocyclic Schiff Base Derived From 2,6-Diacetylpyridine and 1,3-Diamino-2-hydroxypropane
ZHENG Hui,YAN Shi-ping,CHENG Peng,LIAO Dai-zhengJIANG Zong-hui and WANG Geng-lin.Synthesis and Characterization of Binuclear Lanthanide Complexes with Macrocyclic Schiff Base Derived From 2,6-Diacetylpyridine and 1,3-Diamino-2-hydroxypropane[J].Chemical Research in Chinese University,1993(3).
Authors:ZHENG Hui  YAN Shi-ping  CHENG Peng  LIAO Dai-zhengJIANG Zong-hui and WANG Geng-lin
Abstract:
Keywords:Binuclear complex  Macrocyclic complex  Lanthanide  Magnetism
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