Actinide-based single-molecule magnets: alone or in a group?

Abstract

In recent years, very significant progress has been made in single-molecule magnets (SMMs), and one of the major milestone works is the hysteresis blocking temperature beyond the boiling point of...

Utility of all-pyrazole heteroscorpionates in f-element chemistry

“…5), facilitates the generation of actinide compounds that can be screened for desirable magnetic properties. The assertion of greater covalency in actinide complexes has been suggested to negatively affect magnetic anisotropy and slow magnetic relaxation, 30,54 however, functionalization could offset this detriment, as NO 2 -functionalization enhanced the SMM properties of [NdTp 3 ].…”

N-Aryloxide-Amidinate Thorium Complexes

“…Despite these challenges, the field has seen great progress since the discovery of the first organometallic actinide complex six decades ago . Over the past few decades, the understanding of fundamental actinide organometallic chemistry, especially regarding uranium and thorium complexes, has significantly deepened. − These complexes demonstrate unique electronic structures and show immense potential in various applications, including small molecule activation, luminescent materials, magnetic materials, and radiopharmaceuticals for diagnostic and therapeutic purposes. − …”

LnIII/MnII–LnIII complexes derived from a salicylic azo dye ligand: synthesis, structures, magnetic and fluorescence properties

“…Single-molecule magnets (SMMs) have attracted enormous interest in the synthesis of various homo-/heterometallic complexes having the potential to behave as molecular magnets. 1–8 Since the first Ln-SMM {TbPc 2 } was discovered in 2003, 9 a great number of lanthanide-based SMMs have been prepared and investigated in subsequent surveys, owing to the high-spin ground state and unquenched orbital angular momentum of lanthanide ions. 10–14 To obtain SMMs with good performance, a great number of efforts have been made to create lanthanide systems: for example, the dysprosium metallocene [(Cp ttt ) 2 Dy][B(C 6 F 5 ) 4 ] (Cp ttt = 1,2,4-tri- tert -butylcyclopentadienyl) 15 and [(Cp iPr5 )Dy(Cp*)] + (Cp iPr5 = pentaisopropylcyclopentadienyl; Cp* = pentamethylcyclopentadienyl).…”