Rare-earth metal complex and preparation method thereof

Abstract

The invention provides a rare-earth metal complex, in particular to a rare-earth metal complex material which is valuable and potential in luminescence, wherein the lanthanum ions of the compound (La (C10H1102) (phen) 2 (NO3)) are connected with one another by organic complex, so that a three-dimensional space structure is formed. A preparation method of the rare-earth metal complex comprises the following steps of: allowing the molar ratio of raw materials such as lanthanum nitrate, 2-ethyl-phenylacetic acid and 1.10-phenanthroline to be 1:1:2; dropping hydrochloric acid to water / ethanol mixed solution as a solvent to adjust the PH value to be from 3 to 4, and carrying out a thermal reaction on the solvent and raising the temperature to 80 DEG C, wherein the cooling speed is 10 DEG C / h. The invention lays the foundation of the preparation method and the luminous function mechanism of the complex which is sequentially taken as the luminescent material; and the complex is the luminescent material which is valuable and potential.

Description

technical field [0001] The invention relates to a rare earth metal complex and a preparation method thereof, in particular to a rare earth fluorescent luminescent material [La(C 10 h 11 o 2 )(phen) 2 (NO 3 )] complex and preparation method thereof. Background technique [0002] As a key material, rare earth luminescent materials have an obvious impact on human science and technology, life and production. Rare earth metals play an important role in functional materials such as luminescent materials, magnetic materials, catalytic materials, magneto-optical storage materials, and hydrogen storage materials, especially rare earth luminescent materials. Luminescent rare earth metal complexes prepared from non-fluorescent inert metal ions and organic ligands and related rare earth fluorescent materials have also attracted the attention of researchers in recent years. Due to the unique 4f electronic structure of rare earth metals, it has a large atomic radius and atomic magne...

AI Technical Summary

Problems solved by technology

The most common ones are fluorescence and phosphorescence, and then emit light with the same or longer wavelength as the absorption. Relatively speaking, the research on fluorescence emission is more in-depth, but because the f-f configuration transition of rare earth metals is forbidden by spectral selection , the light absorption ability is weak, so it is basically impossible to directly excite the rare earth metal to cause its luminescence

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