具有卟啉-酞菁混合三明治配体系统的双核单分子磁体，给出 SAP 和 SP 配位多面体。
Dinuclear single-molecule magnets with porphyrin-phthalocyanine mixed triple-decker ligand systems giving SAP and SP coordination polyhedra.
机构信息
Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
出版信息
Chem Commun (Camb). 2012 May 28;48(43):5337-9. doi: 10.1039/c2cc31125a. Epub 2012 Apr 23.
PMID:22523745
Abstract
Two terbium ions in a triple-decker complex (Pc)Tb(Pc)Tb(T(p-OMe)PP) (Pc = phthalocyaninato, T(p-OMe)PP = tetra-p-methoxyphenylporphyrinato) have shown sharply different magnetic behaviours depending on symmetry of the coordination polyhedron. The fast quantum tunnelling relaxation process in a square-prismatic site has been revealed to be hindered by magnetic-dipolar coupling between the f-electronic systems.
摘要
在一个三层夹心配合物（Pc）Tb(Pc)Tb(T(p-OMe)PP)（Pc = 酞菁基，T(p-OMe)PP = 四对甲氧基苯基卟啉基）中，两个铽离子表现出明显不同的磁行为，这取决于配位多面体的对称性。在正方形棱柱形位置，快速量子隧道弛豫过程被证明受到 f 电子体系之间磁偶极耦合的阻碍。
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