The ligand system triplesalen was rationally designed following requirements for polynuclear 3d single-molecule magnets (SMMs). The essential central part is the C3 symmetric, meta-phenylene bridging unit phloroglucinol for ferromagnetic interactions via the spin-polarization mechanism. The triplesalen-based [Mn6Cr] SMMs strongly suppress the quantum tunneling of the magnetization (QTM) but exhibit blocking temperatures not exceeding 2 K. We have analyzed the reason for this behavior and found that the triplesalen ligands are not

中文翻译：

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通过抑制磁化的量子隧道优化单分子磁铁

配体系统triplesalen是根据多核3d单分子磁铁（SMM）的要求合理设计的。基本的中心部分是 C3 对称的间苯撑桥联单元间苯三酚，用于通过自旋极化机制进行铁磁相互作用。基于 [Mn6Cr] 的 SMM 强烈抑制磁化强度 (QTM) 的量子隧穿，但表现出不超过 2 K 的阻塞温度。我们分析了这种行为的原因，发现三重塞伦配体不是