Synthesis and Characterization of Binuclear Lanthanide Complexes with Macrocyclic Schiff Base Derived From 2,6-Diacetylpyridine and 1,3-Diamino-2-hydroxypropane

Chemical Research in Chinese Universities ›› 1993, Vol. 9 ›› Issue (3): 188-193.

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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

ZHENG Hui, YAN Shi-ping, CHENG Peng, LIAO Dai-zheng, JIANG Zong-hui, WANG Geng-lin

Department of Chemistry, Nankai University, Tianjin, 300071

Received:1992-12-19 Online:1993-08-24 Published:2011-08-17
Supported by:
Supported by the National Natural Science Foundation of China

Abstract

Abstract: 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.

Key words: Binuclear complex, Macrocyclic complex, Lanthanide, Magnetism

ZHENG Hui, YAN Shi-ping, CHENG Peng, LIAO Dai-zheng, JIANG Zong-hui, 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 Universities, 1993, 9(3): 188-193.

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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

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