Correction to: Cobalt(II) Complexes as Single-Ion Magnets

Field-Induced Slow Magnetic Relaxation in CoII Cyclopropane-1,1-dicarboxylates

“…Recently, considerable attention has been paid to the slow magnetic relaxation of complexes of d -elements and especially Co 2+ ; in other words, to their properties as molecular magnets [ 9 , 15 , 16 , 18 , 47 ]. In order to check the presence of slow magnetic relaxation for the complexes obtained, studies of the dynamic magnetic susceptibility of all the compounds were carried out ( Figure 6 and Figure 7 ).…”

“…3d-metal ions, for example, Fe II or Co II , can exhibit magnetic anisotropy that depends on the geometry of the coordination environment [ 10 , 13 , 14 , 15 , 16 , 17 , 18 ]. The choice of 3d-metal undoubtedly affects the anisotropy and magnetic properties of the resulting coordination compounds [ 19 , 20 , 21 ]; however, selection of organic ligands that significantly affect both the structure of compounds and the possibility of exchanges between the metal centers is no less important.…”

A dinuclear Co(iii)/Co(ii) complex based on the H2pmide ligand showing field-induced SMM behaviour

“…Among possible 3d SMMs, Co( ii )-based ones are the most explored, mainly because of their low degree of orbital contribution quenching, which is strongly dependent on the coordination sphere geometry and symmetry. 14–16 In particular, six-coordinate (octahedral and trigonal prismatic) Co( ii ) complexes possess non-zero orbital angular momentum in their ground state electronic configuration; hence, they are expected to show large D parameters. 16 It has been observed that of the two possible anisotropies, the easy-plane one results in smaller magnetization thermal barriers, while easy-axis anisotropy affords higher values of U eff , as such geometry may lead to first-order orbital angular momentum.…”

“…14–16 In particular, six-coordinate (octahedral and trigonal prismatic) Co( ii ) complexes possess non-zero orbital angular momentum in their ground state electronic configuration; hence, they are expected to show large D parameters. 16 It has been observed that of the two possible anisotropies, the easy-plane one results in smaller magnetization thermal barriers, while easy-axis anisotropy affords higher values of U eff , as such geometry may lead to first-order orbital angular momentum. 3,16 However, of the several distorted octahedral Co( ii ) complexes found in the literature, only a few are stabilized with easy-axis anisotropy.…”

“…16 It has been observed that of the two possible anisotropies, the easy-plane one results in smaller magnetization thermal barriers, while easy-axis anisotropy affords higher values of U eff , as such geometry may lead to first-order orbital angular momentum. 3,16 However, of the several distorted octahedral Co( ii ) complexes found in the literature, only a few are stabilized with easy-axis anisotropy. 17–35…”