Santana Francielli S, Perfetti Mauro, Briganti Matteo, Sacco Francesca, Poneti Giordano, Ravera Enrico, Soares Jaísa F, Sessoli Roberta
Departamento de Química, Universidade Federal do Paraná, Centro Politécnico 81530-900 Curitiba PR Brazil
Department of Chemistry "U. Schiff", University of Florence Via della Lastruccia 3-13, Sesto Fiorentino 50019 Italy
Chem Sci. 2022 Apr 26;13(20):5860-5871. doi: 10.1039/d2sc01619b. eCollection 2022 May 25.
A common criterion for designing performant single molecule magnets and pseudocontact shift tags is a large magnetic anisotropy. In this article we present a dysprosium complex chemically designed to exhibit strong easy-axis type magnetic anisotropy that is preserved in dichloromethane solution at room temperature. Our detailed theoretical and experimental studies on the magnetic properties allowed explaining several features typical of highly performant SMMs. Moreover, the NMR characterization shows remarkably large chemical shifts, outperforming the current state-of-the art PCS tags.
设计高性能单分子磁体和伪接触位移标签的一个常见标准是具有大的磁各向异性。在本文中，我们展示了一种经过化学设计的镝配合物，它表现出很强的易轴型磁各向异性，并且在室温下的二氯甲烷溶液中仍能保持。我们对其磁性进行的详细理论和实验研究，能够解释高性能单分子磁体的几个典型特征。此外，核磁共振表征显示出非常大的化学位移，优于目前的先进伪接触位移标签。
