Single-molecule magnetism of tetrapyrrole lanthanide compounds with sandwich multiple-decker structures

Magnetic Slow Relaxation in a Metal–Organic Framework Made of Chains of Ferromagnetically Coupled Single‐Molecule Magnets

“…In fact, high‐performance lanthanide SMMs possess highly symmetric electrostatic environments that induce strong stabilization of the magnetic ground state . A striking illustration of the latter concept is given by the Ln–phthalocyanine (LnPc) systems, where the organic ligands impose a strict D 4 d site symmetry to the lanthanide ion and dramatically improve its magnetic properties when compared with a distorted coordination environment . Compounds based on cyclooctatetraene (COT) are also remarkable examples of such an approach with D 8 d symmetry able to induce strong SMM behavior in a wide range of lanthanide ions such as Ce III , Nd III , Dy III , and Er III .…”

Molecular Design for Single-molecule Magnetism of Lanthanide Complexes

“…22 Substitution of electron-withdrawing groups on phthalocyanine is expected to provide a higher U eff for [Tb(Pc) 2 ). 24 The effect of electron-withdrawing groups can be accounted for by the reduced electrostatic repulsion between the ligands of the anionic complexes, which makes the ligand field stronger.…”

Magnetic Properties of a Terbium–[1]Ferrocenophane Complex: Analogies between Lanthanide–Ferrocenophane and Lanthanide–Bis‐phthalocyanine Complexes

“…[4] Ther ealization of molecule-sized magnetic memory can lead to progress towards new spintronic devices and high-density data storage. [6] Beyond the development of [TbPc R 2 ] n chemistry, [7] only afew new classes of Tb 3+ SIM systems have been reported which typically display U eff values of less than 100 cm À1 . [5] In 2003, Ishikawa et.…”