Center for Nuclear Sciences and Technologies (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066, Bobadela LRS, Portugal.
Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.
Chemistry. 2019 Feb 1;25(7):1758-1766. doi: 10.1002/chem.201805090. Epub 2019 Jan 9.
Early actinide ions have large spin-orbit couplings and crystal field interactions, leading to large anisotropies. The success in using actinides as single-molecule magnets has so far been modest, underlining the need for rational strategies. Indeed, the electronic structure of actinide single-molecule magnets and its relation to their magnetic properties remains largely unexplored. A uranium(III) single-molecule magnet, [U {SiMe NPh} -tacn)(OPPh )] (tacn=1,4,7-triazacyclononane), has been investigated by means of a combination of magnetic, spectroscopic and theoretical methods to elucidate the origin of its static and dynamic magnetic properties.
早期的锕系离子具有较大的自旋轨道耦合和晶体场相互作用，导致各向异性较大。迄今为止，将锕系元素用作单分子磁体的成功是有限的，这凸显了需要合理的策略。事实上，锕系元素单分子磁体的电子结构及其与磁性质的关系在很大程度上仍未得到探索。通过结合磁性、光谱和理论方法，研究了铀(III)单分子磁体[U{SiMe NPh} -tacn)(OPPh )]（tacn=1,4,7-三氮杂环壬烷），以阐明其静态和动态磁性质的起源。
