2-Formyl-8-hydroxyquinoline-1,3 diamino-2-propanol Schiff base tetranuclear dysprosium cluster and its synthesis method

Abstract

The invention discloses a 2-aldehyde-8-hydroxyquinoline-1,3-diamino-2-propyl alcohol Schiff base four-core dysprosium cluster compound and a synthesis method thereof. The cluster compound belongs to amonoclinic system, a P21 / n space group, and the chemical formula is [Dy4(C23H17N4O3)2(mu3-OH)2(NO3)4(H2O)2]. The synthesis method of the cluster compound comprises the following steps: dissolving 2-aldehyde-8-hydroxyquinoline, 1,3-diamino-2-propyl alcohol and Dy(NO3)3*6H2O into a mixed solvent, adjusting the pH of the obtained solution to be 9.4 to 10.0, performing reaction on the obtained mixedliquid under the heating condition, cooling a reactant and separating out crystals to obtain the cluster compound, wherein the mixed solvent is a composition of ethanol and acetonitrile. The cluster compound has field induced single-molecular magnet behavior and can be used for preparing a magnetic material; furthermore, the synthesis method is simple and easy to operate.

Description

technical field The invention relates to a 2-formyl-8-hydroxyquinoline-1,3-diamino-2-propanol Schiff base tetranuclear dysprosium cluster compound and a synthesis method thereof, belonging to the technical field of magnetic materials. Background technique Due to their structure and the unique properties of rare earth ions, rare earth complexes have excellent optical, electrical, and magnetic properties, and have broad application prospects in the fields of magnetic materials, optical sensors, and molecular recognition. Compared with transition metals, rare earth ions are often used to construct single-molecule magnets due to their large anisotropy, and their complexes often have excellent magnetic properties. In view of the excellent magnetic properties of their complexes, researchers are currently Many rare earth complexes with single-molecule magnet behavior have been reported, ranging from mononuclear to hypernuclear. High-nuclear complexes often have complex and beautif...

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Problems solved by technology

High-nuclear complexes often have complex and beautiful structures, and there are too many factors affecting the magnetic properties of high-nuclear complexes, which is not convenient for modeling and calculation

However, it has not been seen that 2-formyl-8-hydroxyquinoline and 1,3-diamino-2-propanol are spontaneously assembled to form ligands in situ and then combined with Dy(NO 3 ) 3 ·6H 2 A related report of 2-formyl-8-hydroxyquinoline-1,3-diamino-2-propanol Schiff base tetranuclear dysprosium cluster obtained by O reaction

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