|Conţinutul numărului revistei|
| SM ISO690:2012|
TUPOLOVA, Yu.; SHCHERBAKOV, Igor; POPOV, Leonid; LEBEDEV, Vladimir; TKACHEV , Valerii; ZAKHAROV, Konstantin; VASILIEV, Alexander; KORCHAGIN, Denis; PALII, Andrew; ALDOSHIN, Serghei. Field-induced single-ion magnet behaviour of a hexacoordinated Co(ii) complex with easy-axis-type magnetic anisotropy. In: Dalton Transactions. 2019, nr. 20(48), pp. 6960-6970. ISSN 1477-9226.
|Numărul 20(48) / 2019 / ISSN 1477-9226|
A coordination compound with the composition [CoLCl 2 ]·H 2 O (L = bis-condensation product of diacetyl and 2-hydrazinyl-4,6-dimethylpyrimidine) was synthesized, in which the Co(ii) ion was hexacoordinated. Under applied DC fields, this compound exhibited single-ion magnet behavior. Two relaxation processes were observed when increasing the applied magnetic field from 1000 to 3200 Oe. The first relaxation (high-frequency) was observed both at 1000 Oe and 3200 Oe, while the second relaxation was only registered under a field of 3200 Oe at low frequencies (<1 Hz) and low temperatures (<5 K). Modeling of the magnetic DC properties using the Griffith Hamiltonian accompanied by quantum chemical calculations revealed easy-axis-type magnetic anisotropy with weak rhombic contributions.