吉林大学施展教授研究组 | Inorg. Chem., 2012,51 (14),7529-7536.Q.Zhou, F.Yang, D.Liu, Y.Peng, G.Li, Z.Shi*, S.Feng

Graphical abstract: Synthesis, Structures, and Magnetic Properties of Three Fluoride-Bridged Lanthanide Compounds: Effect of Bridging Fluoride Ions on Magnetic Behaviors
Figure 1. Asymmetric structure unit and polymeric structure of compound 1. Organic hydrogen atoms and minor disordered components have been omitted for clarity.
Figure 2. The Dy2 cores and polymeric structure of compound 3. Organic hydrogen atoms and minor disordered components have been omitted for clarity.
Figure 3. The Tb2 cores and polymeric structure of compound 4. Organic hydrogen atoms and minor disordered components have been omitted for clarity.
Figure 5. Temperature dependence of the in-phase (a) and out-of-phase (b) ac susceptibility and frequency dependence of in-phase (c) and out-ofphase (d) ac susceptibilities for compound 1 under zero dc field.

论文摘要

A family of fluoride-bridged lanthanide compounds, [DyIIIF(oda)(H2O)3] (1, oda = oxidiacetate) and [LnIII2F2(oda)2(H2O)2] (Ln = Tb(2) and Dy(3)), was synthesized and characterized. To investigate the effects of bridging ligands on magnetic behaviors, two hydroxyl-bridged complexes of formulas [LnIII2(OH)2(oda)2(H2O)4] (Ln = Tb(4) and Dy(5)) were also synthesized. Magnetic measurements show that the magnetic behaviors of the compounds are obviously distinct. Compounds 1, 2, and 3 show ferromagnetic interactions, while only antiferromagnetic interactions are observed in compounds 4 and 5. Among these compounds,1 and 3 show frequency-dependent ac-susceptibility indicative of slow magnetic relaxation. Because the structures of Dy2 cores are very similar in compounds 3 and 5, it may be inferred that the differences of bridging ligands are mainly responsible for the distinct magnetic exchange interactions and relaxation dynamics.

论文题目

Synthesis, structures, and magnetic properties of three dysprosium coordination compounds: effect of bridging fluorine ions on magnetic behaviors

发表刊物

Inorg. Chem., 2012,51 (14),7529-7536.Q.Zhou, F.Yang, D.Liu, Y.Peng, G.Li, Z.Shi*, S.Feng

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Graphical abstract: Synthesis, Structures, and Magnetic Properties of Three Fluoride-Bridged Lanthanide Compounds: Effect of Bridging Fluoride Ions on Magnetic Behaviors

Figure 1. Asymmetric structure unit and polymeric structure of compound 1. Organic hydrogen atoms and minor disordered components have been omitted for clarity.

Figure 2. The Dy2 cores and polymeric structure of compound 3. Organic hydrogen atoms and minor disordered components have been omitted for clarity.

Figure 3. The Tb2 cores and polymeric structure of compound 4. Organic hydrogen atoms and minor disordered components have been omitted for clarity.

Figure 5. Temperature dependence of the in-phase (a) and out-of-phase (b) ac susceptibility and frequency dependence of in-phase (c) and out-ofphase (d) ac susceptibilities for compound 1 under zero dc field.

Graphical abstract: Synthesis, Structures, and Magnetic Properties of Three Fluoride-Bridged Lanthanide Compounds: Effect of Bridging Fluoride Ions on Magnetic Behaviors

Figure 1. Asymmetric structure unit and polymeric structure of compound 1. Organic hydrogen atoms and minor disordered components have been omitted for clarity.

Figure 2. The Dy2 cores and polymeric structure of compound 3. Organic hydrogen atoms and minor disordered components have been omitted for clarity.

Figure 3. The Tb2 cores and polymeric structure of compound 4. Organic hydrogen atoms and minor disordered components have been omitted for clarity.

Figure 5. Temperature dependence of the in-phase (a) and out-of-phase (b) ac susceptibility and frequency dependence of in-phase (c) and out-ofphase (d) ac susceptibilities for compound 1 under zero dc field.

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