Synthesis and Magnetism of 2 Hydroxy 1,3 propylene bis(oxamato) bridged CoⅡCuⅡCoⅡ Complexes

Chemical Research in Chinese Universities ›› 1997, Vol. 13 ›› Issue (4): 289-293.

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Synthesis and Magnetism of 2 Hydroxy 1,3 propylene bis(oxamato) bridged Co^ⅡCu^ⅡCo^Ⅱ Complexes

MIAO Ming-ming, CHENG Peng, LIAO Dai-zheng-JIANG Zong-hui, WANG Geng-lin

Department of Chemistry, Nankai University, Tianjin 300071

Received:1996-10-06 Online:1997-12-24 Published:2011-08-17
Supported by:
Supported by the National Natural Science Foundation of China and 21th Centur y Youth Foundation of Tianjin.

Abstract

Abstract: Four new heterotrinuclear complexes have been synthesized and characterized, namely [(CoL₂)₂Cu(pbaOH)](ClO₄)₂, where pbaOH denotes 2-hydroxy-1,3-propylenebis(oxamato) and L stands for 1,10-phenanthroline(phen), 5-nitro 1,10-phenanthroline(NO₂ phen), 2,2'-bipyridyl(bpy) and 4,4'-dimethyl-2,2'-bipyridyl(Me 2bpy). The temperature dependence of the magnetic susceptibility of [(Cophen₂)₂Cu(pbaOH)](ClO₄)₂·H₂O has been studied in the range of 4—300 K, the plot of χ_M T_vs. T exhibits a minimum at about 120 K, but abnormal magnetic behavior below 78 K.

Key words: Copper(Ⅱ) complex, Cobalt(Ⅱ) complex, Trinuclear Complex, Magnetism

MIAO Ming-ming, CHENG Peng, LIAO Dai-zheng-JIANG Zong-hui, WANG Geng-lin . Synthesis and Magnetism of 2 Hydroxy 1,3 propylene bis(oxamato) bridged Co^ⅡCu^ⅡCo^Ⅱ Complexes[J]. Chemical Research in Chinese Universities, 1997, 13(4): 289-293.

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Synthesis and Magnetism of 2 Hydroxy 1,3 propylene bis(oxamato) bridged Co^ⅡCu^ⅡCo^Ⅱ Complexes

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