A Pentanuclear Manganese Single-Molecule Magnet with a Large Anisotropy

Structures with Tunable Strong Ferromagnetic Coupling: from Unordered (1D) to Ordered (Discrete)

“…[4] Moreover, the judicious selection of ligands to provide superexchange pathways for exchange coupling between metal spin centers is vital for synthetic chemists to synthesize magnetic materials. [5] Azido is a good bridging ligand and has been extensively explored by researchers, [6] probably because it can mediate ferromagnetic coupling in m 1,1 bridging mode (end-on, EO) and antiferromagnetic interactions in m 1, 3 bridging mode (end-to-end, EE), in spite of several exceptions. [7] Carboxylate ligands are another hot topic in molecular magnetism, and exciting results such as single-chain and single-molecule magnets are gradually being reported, [8,9] especially after the emergence of Mn 12 .…”

Synthesis and crystal structures of two isostructural manganese(III) and iron(III) complexes derived from N,N′-bis(3-ethoxysalicylidene)-1,2-propanediamine with cytochrome P450-like hydroxylation properties

“…It is stable in air at room temperature, soluble in methanol, ethanol, and acetonitrile, and insoluble in water. Azide is a versatile bridging group which usually coordinates with different metal atoms through end-on, end-to-end, and many other modes [19][20][21]. However, the azide groups in these two complexes adopt terminal coordination mode, which might be caused by the strong coordination ability of the water molecules and by the strong intermolecular hydrogen bonds between adjacent complex molecules.…”

A rare diarboxylate and N-oxide/H2O bridged metal-organic framework with nickel(II)-oxide octahedral chains: synthesis, crystal structure, and magnetic properties with theoretical investigations on the exchange mechanism

“…Carboxylate can efficiently mediate either ferromagnetic (FM) or antiferromagnetic (AFM) coupling through various coordinating modes, as well as they can be used as the connection between magnetic moment carriers (metal nodes) with the interacting range to form robust MOFs exhibiting long-range magnetic ordering [7,8]. Therefore, the employment of carboxylate ligands can make contributions to efficient magnetic exchange between neighboring magnetic carriers, which has been proven to be a meaningful method to create molecular magnets.…”