Magnetic properties of lanthanide organometallic sandwich complexes produced in a molecular beam
Magnetic properties of lanthanide organometallic sandwich complexes produced in a molecular beam
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DOI：
10.1016/j.poly.2005.03.175
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发表时间：
2005-11
期刊：
影响因子：
2.6
通讯作者：
K. Miyajima;M. Knickelbein;A. Nakajima
中科院分区：
文献类型：
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作者：
K. Miyajima;M. Knickelbein;A. Nakajima
采用Stern-Gerlach型磁偏转法测定了气相铽-环四烯多层夹层配合物Tbn(C8H8)n+1的磁性能。Tbn(C8H8)n+1配合物的光束向强场倾斜，表明配合物在通过磁场时发生了快速的自旋弛豫。用Langevin模型计算了Tbn(C8H8)n+1（n=1−5）的磁矩。用Tb3+/2+离子氧化态的电子结构讨论了磁矩随配合物尺寸的演化，暗示了相邻两个Tb3+离子反铁磁相互作用的可能性。
The magnetic properties of gas-phase terbium–cyclooctatetraene multi-decker sandwich complexes, Tbn(C8H8)n+1were measured using a Stern-Gerlach type magnetic deflection approach. Beams of Tbn(C8H8)n+1complexes displayed one-sided deflection toward high field – indicating that fast spin relaxation occurs within the complexes as they pass through the magnetic field. The magnetic moment for Tbn(C8H8)n+1(n=1−5) was evaluated using the Langevin model. Evolution of magnetic moment with the complex size is discussed with electronic structures for oxidation states of Tb3+/2+ions, implying the possibility of antiferromagnetic interaction of two adjacent Tb2+ions.