期刊
DALTON TRANSACTIONS
卷 48, 期 20, 页码 6960-6970出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9dt00770a
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资金
- Development Program of the Southern Federal University [VnGr-07/2017-29]
- Ministry of Education and Science of the Russian Federation in the Increase Competitiveness Program of NUST MISiS [K2-2017-084]
- Act 211 of the Government of Russian Federation [02.A03.21.0004, 02.A03.21.0011]
- Ministry of Science and Higher Education of the Russian Federation [14.W03.31.0001, 0089-2019-0011]
A coordination compound with the composition [CoLCl2]H2O (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.
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