引用本文:
刘宝林, 李付安, 陶偌偈, 王庆伦, 廖代正. 不对称双Schiff碱三核配合物的合成和磁性[J]. 应用化学,
2006, 23(10): 1108-1111.
Citation: LIU Bao-Lin, LI Fu-An, TAO Ruo-Jie, WANG Qing-Lun, LIAO Dai-Zheng. Synthesis, Charactrization and Magnetic Properties of Asymmetrical Double Schiff Base Trinuclear Complexes[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1108-1111.
Citation: LIU Bao-Lin, LI Fu-An, TAO Ruo-Jie, WANG Qing-Lun, LIAO Dai-Zheng. Synthesis, Charactrization and Magnetic Properties of Asymmetrical Double Schiff Base Trinuclear Complexes[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1108-1111.
不对称双Schiff碱三核配合物的合成和磁性
摘要:
合成了不对称双Schiff碱Cu(Ⅱ)单核配合物HCuLe(H3Le为N-3-羧基水杨醛-N'-(5-氯水杨醛)缩乙二胺)及三核配合物Cu(Ⅱ)Co(Ⅱ)Cu(Ⅱ)和Cu(Ⅱ)Cu(Ⅱ)Cu(Ⅱ),用元素分析、红外光谱、电子光谱测试技术对它们进行了表征。测定了2个三核配合物在5~300 K范围内的变温磁化率,并通过自旋哈密顿算符Ĥ=-2JŜM(ŜCu1+ŜCu2)推导出的理论公式对实验值进行最佳拟合,得到了2个三核配合物的磁交换参数J1=-15.1 cm-1,J2=-61.8 cm-1,表明在这2个配合物分子内存在金属离子间反铁磁偶合作用。
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关键词:
- 不对称双Schiff碱
- / 三核配合物
- / 磁性
English
Synthesis, Charactrization and Magnetic Properties of Asymmetrical Double Schiff Base Trinuclear Complexes
Abstract:
An asymmetrical double Schiff base Cu(Ⅱ) mononuclear complex HCuLe (Where H3Le is N-3-carboxylsalicylidene-N'-(5-chlorosalicylaldehyde-1,2-diaminoethane)) and its trinuclear complexes Cu(Ⅱ)M(Ⅱ)Cu(Ⅱ)(M=Co,Cu) were synthesized and characterized by means of elemental analysis,IR and electron spectrometries.The variable-temperature magnetic susceptibilities of(CuLe)2Co·H2O and (CuLe)2Cu·H2O at 5~300 K were analyzed by means of the Hamiltonian Ĥ=-2JŜM(ŜCu1+ŜCu2),leading to J1=-15.1 cm-1,J2=-61.8 cm-1,which indicated that the interaction between the central M(Ⅱ) ion and the terminal Cu(Ⅱ) ions was antiferromagnetical.
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Key words:
- asymmetrical double Schiff base
- / trinuclear complex
- / magnetic property
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