Triazinyl tricarboxylic acid heavy rare earth complex and preparing method, characterization method and application thereof

Abstract

The invention provides a triazinyl tricarboxylic acid heavy rare earth complex. The specific chemical formula is [Ln2(TCT)2(H2O)6].6H2O, wherein Ln is selected from Tb or Dy or Ho or Er or Tm or Yb or Lu, TCT is 2,4,6-tri(carboxymethyl sulfydryl)-1,3,5-triazine negative ion, and meanwhile the invention provides a preparing method and a characterization method of the triazinyl tricarboxylic acid heavy rare earth complex. Synthesis raw materials are easy to obtain, the synthesis method is simple, a reaction does not be carried out under the high-temperature high-pressure hydrothermal or solvothermal condition, the cost is low, and the yield is high; the synthesized triazinyl tricarboxylic acid heavy rare earth complex is poor in water solubility, and is also difficultly dissolved in a common organic solvent, and secondary pollution to the environment is prevented; the prepared triazinyl tricarboxylic acid heavy rare earth complex shows the ligand-sensitized rare-earth-ion-lighting and the field-induced slow magnetic relaxation behavior, and can serve as applications of light and magnetism function materials.

Description

technical field [0001] The invention relates to the technical field of optical and magnetic functional materials and synthesis methods, in particular to a triazine tricarboxylic acid heavy rare earth complex and its preparation method and application. Background technique [0002] Rare earth metal-organic complexes have rich structures and excellent properties such as luminescence, magnetism, adsorption, and catalysis, and have attracted extensive attention from coordination chemists. In recent years, rare-earth metal-organic complexes with zero-dimensional single-molecular structure have been widely studied, because such complexes not only exhibit ligand-sensitized rare-earth ion luminescence, but also some complexes also display single-molecule magnet behavior. Several classes of multidentate organic ligands, such as Schiff bases, β-diketones, and hydrazines, have been used to construct rare-earth metal-organic complexes with zero-dimensional single-molecule structures. H...

AI Technical Summary

Problems solved by technology

However, unimolecular rare earth complexes based on organic carboxylic acid compounds have rarely been reported. The reason may be that carboxylic acid organic ligands are conducive to the construction of high-dimensional rare earth complexes, which are not conducive to the formation of unimolecular rare earth complexes.

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