Single-Molecule Magnets: From Mn12-ac to dysprosium metallocenes, a travel in time

Stereoisomeric coordination polymers based on facial and meridional six-coordinate dysprosium(iii )

“…, Dy( iii )). 13–19 The magnetic behaviours of such complexes are distinctly related to the coordination environments 20 and symmetries 21 of the central lanthanide ions. Due to the contracted nature of the f-orbitals, magnetic exchange interactions between f-elements are very weak.…”

Spin-Phonon Relaxation in Magnetic Molecules: Theory, Predictions and Insights

“…However, differently from the solid-state doped materials initially studied, molecular crystals posses many low-lying optical modes. Moreover, as one of the main goals pursued in the field of molecular magnetism is the enhancement of magnetic anisotropy, the energy splitting among spin states have been increasing by orders of magnitudes along the years [5,115]. This situation made it so that the assumptions of section III have lost their general validity.…”

“…Moreover, it is important to remark that so far ab initio spin dynamics has been applied to only a handful of systems and there is large scope for investigating the large and varied phenomenology of molecular magnetism. Examples includes the study of exchange-coupled poly-nuclear magnetic molecules [5], surface-adsorbed systems [14] and molecules in glassy solutions [43].…”

“…Magnetism is also another natural area of application for this class of systems. The design of magnetic molecules able to retain the direction of their magnetic moment for long times [4], commonly known as single-molecule magnets, has been one of the central goals for a large community of chemists, physicists and material scientists for a long time [5]. More recently, the advent of disciplines such as spintronics [6][7][8] and quantum science [9][10][11][12][13] have also attracted the attention of the molecular magnetism community.…”

Lanthanide and transition metal complexes as molecular magnets

“…1 The discovery that [Mn 12 O 12 (CH 3 COO) 16 (H 2 O) 4 ] showed slow relaxation of magnetization and magnetic hysteresis at low temperatures 2 spawned the interdisciplinary field of molecular magnets involving coordination complexes of transition metal and lanthanide metal ions. 3–10 These systems which were called single molecule magnets (SMMs), once magnetized, show an effective energy barrier to magnetization reversal. Currently many types of coordination complexes are being investigated.…”