A dysprosium single molecule magnet outperforming current pseudocontact shift agents
Francielli S. Santana, Mauro Perfetti, Matteo Briganti, Francesca Sacco, Giordano Poneti, Enrico Ravera, Jaı́sa F. Soares, Roberta Sessoli
Abstract
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.
Topics & Concepts
DysprosiumMagnetAnisotropyMolecular magnetsMoleculeMagnetic anisotropyCurrent (fluid)Materials scienceChemistryCharacterization (materials science)Chemical physicsNuclear magnetic resonanceMagnetizationNanotechnologyPhysicsMagnetic fieldInorganic chemistryThermodynamicsOrganic chemistryOpticsQuantum mechanicsMagnetism in coordination complexesLanthanide and Transition Metal ComplexesPorphyrin and Phthalocyanine Chemistry