A Discrete Nickel Cubane with [Ni₄O₄] Cluster: Synthesis, Structure, and Magnetic Property

Synthesis, characterization and magnetic properties of halogenated tetranuclear cubane-like nickel(ii) complexes

“…The upsurge present in all cases highlights the presence of ferromagnetic interactions operating within the Ni 4 cage. 62–66 Magnetization versus field studies show the highest M ( H ) values at the highest field (5 T) and lowest temperature (2 K) of 8.8, 8.9, 9.8 and 8.5 N β for 1 , 2 , 3 and 4 , respectively (see insets in Fig. 6).…”

“…Considering the crystal structure of the Ni 4 cage, two interaction pathways were considered, 62–66 to simultaneously fit the χ M T ( T ) and M ( H , T ) in PHI. 67 A Hamiltonian of the following form was employed:where the first and second terms are the exchange interaction between the closest Ni( ii ) ions and the third term is the zero-field splitting parameter.…”