Spin alignment in a model compound of organic ferrimagnets

Spin alignment in a model compound of organic ferrimagnets
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有机亚铁磁体模型化合物中的自旋排列

DOI:
10.1080/00268948908037467
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发表时间:
1989
影响因子:
0.7
通讯作者:
T. Kinoshita
T. Kinoshita
中科院分区:
化学4区
文献类型:
--
作者:
K. Itoh;T. Takui;Y. Teki;T. Kinoshita

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摘要利用单晶ESR研究了有机高自旋分子中磁性基团之间通过醚桥的交换相互作用。是铁磁性还是反铁磁性取决于电桥的取代位置,显示了拓扑在自旋取向中的重要作用。这种行为可以令人满意地解释为由于超交换机制。利用反铁磁桥,设计了有机铁磁体单元的模型化合物,并确定了其自旋结构。
Abstract Exchange interaction via an ether bridge between magnetic moieties in organic high-spin molecules has been studied by single-crystal ESR. Whether it is ferromagnetic or antiferromagnetic depends on the substituted position of the bridge, showing the important role of topology in spin alignment. This behavior is satisfactorily interpreted as due to superexchange mechanism. Using the antiferromagnetic bridge, a model compound for a unit of organic ferrimagnets is designed and its spin structure is determined.