Hexagonal biconical mononuclear dysprosium compound, preparation method and application thereof
A compound and bipyramidal technology, applied in the field of hexagonal bipyramidal mononuclear dysprosium compounds and their preparation, can solve the problems of inconvenient synthesis, easy decomposition or weathering, poor repetition effect, etc. High controllability and good stability
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Embodiment 1
[0026] A synthetic method of a hexagonal bipyramidal mononuclear dysprosium compound with the behavior of a single-molecule magnet, comprising:
[0027] Step 1, 2,6-dichloro-4-nitrophenol (0.5mmol) and NaH (0.5mmol) were dissolved in 15mL water-dichloromethane (1:1) mixed solvent, and then DyCl 3 ·6H 2 O (0.5mmol) and pentaethylene glycol (0.5mmol) were added in, stirred for 1 hour, and a yellow suspension was obtained.
[0028] Step 2. Take NaBPh 4 (0.5mmol) was added to the above suspension, heated to 100°C and refluxed for 4 hours, cooled to room temperature, separated the dichloromethane layer with a separatory funnel, transferred to a test tube, slowly dripped 30mL of n-hexane to form two The phases were separated, and the crystals of dysprosium single-ion magnets were obtained after 4 days.
[0029] The yield of the dysprosium single-ion magnet prepared in this example is 41.8%, and the purity is above 99%.
Embodiment 2
[0031] A synthetic method of a hexagonal bipyramidal mononuclear dysprosium compound with the behavior of a single-molecule magnet, comprising:
[0032] Step 1, 2,6-dichloro-4-nitrophenol (0.3mmol) and NaH (0.3mmol) were dissolved in 10mL water-dichloromethane (1:1) mixed solvent, and then DyCl 3 ·6H 2 O (0.5mmol) and pentaethylene glycol (0.7mmol) were added in, stirred and reacted for 1 hour, and a yellow suspension was obtained.
[0033] Step 2. Take NaBPh 4 (0.5mmol) was added to the above suspension, heated to 100°C and refluxed for 4 hours, cooled to room temperature, separated the dichloromethane layer with a separatory funnel, transferred to a test tube, slowly dripped 20mL of n-hexane to form two The phases were separated, and the crystals of dysprosium single-ion magnets were obtained after 3 days.
[0034] The yield of the dysprosium single ion magnet prepared in this example is 38.5%, and the purity is above 99%.
[0035] The characterization of the dysprosium ...
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