The central Mn^II ions in a series of calix[4]arene‐stabilised butterflies can be sequentially replaced with Ln^III ions, maintaining the structural integrity of the molecule but transforming its magnetic properties. The replacement of Mn^II for Gd^III allows for the examination of the transferability of spin‐Hamiltonian parameters within the family as well as permitting their reliable determination. The introduction of the 4f ions results in weaker intramolecular magnetic exchange, an increase in the number of low‐lying excited states, and an increase in magnetisation relaxation, highlighting the importance of exchange over single‐ion anisotropy for the observation of SMM behaviour in this family of complexes. The presence of the [TM^II/III(TBC[4])(OH)(solvent)] metalloligand (TM=transition metal, TBC=p‐tBu‐calix[4]arene) suggests that magnetic calix[n]arene building blocks can be employed to encapsulate a range of different “guests” within structurally robust “hosts”.

中文翻译：

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单分子磁体中3d和4f离子的便捷互换：杯形[4]芳烃骨架中[Mn4]，[Mn3Ln]和[Mn2Ln2]笼的逐步组装。

一系列杯[4]芳烃稳定的蝴蝶中的中心Mn ^II离子可以依次替换为Ln ^III离子，从而保持了分子的结构完整性，但改变了其磁性。用Mn ^II代替Gd ^III可以检查自旋哈密顿参数在该族内的可转移性，并可以对其进行可靠的测定。4f离子的引入导致分子内磁交换较弱，低激发态数量增加，磁化弛豫增加，这突出表明了交换对于单离子各向异性的重要性，这对于观察SMM行为至关重要。复杂的家庭。[TM的存在^{II / III}（TBC [4]）（OH）（溶剂）]金属配体（TM =过渡金属，TBC = p - t Bu-calix [4]芳烃）表明可以使用磁性杯[ n ] arene构建基来在结构坚固的“主机”中封装了一系列不同的“来宾”。