Meihaus Katie R, Long Jeffrey R
Department of Chemistry, University of California, Berkeley, California 94720, USA.
Dalton Trans. 2015 Feb 14;44(6):2517-28. doi: 10.1039/c4dt02391a.
Actinide single-molecule magnetism has experienced steady growth over the last five years since the first discovery of slow magnetic relaxation in the mononuclear complex U(Ph(2)BPz(2))(3). Given their large spin-orbit coupling and the radial extension of the 5f orbitals, the actinides are well-suited for the design of both mononuclear and exchange-coupled molecules, and indeed at least one new system has emerged every year. By some measures, the actinides are already demonstrating promise for one day exceeding the performance characteristics of transition metal and lanthanide complexes. However, much further work is needed to understand the nature of the slow relaxation in mononuclear actinide complexes, as well as the influence of magnetic exchange on slow relaxation in multinuclear species. This perspective seeks to summarize the successes in the field and to address some of the many open questions in this up and coming area of research.
自单核配合物U(Ph(2)BPz(2))(3)中首次发现缓慢磁弛豫以来，锕系单分子磁体在过去五年中经历了稳步发展。鉴于其大的自旋轨道耦合和5f轨道的径向延伸，锕系元素非常适合设计单核和交换耦合分子，事实上每年至少会出现一个新系统。从某些方面来看，锕系元素已经展现出有朝一日超越过渡金属和镧系配合物性能特征的潜力。然而，要理解单核锕系配合物中缓慢弛豫的本质，以及磁交换对多核物种中缓慢弛豫的影响，还需要做更多的工作。本综述旨在总结该领域的成功之处，并解决这一新兴研究领域中众多悬而未决的问题。
