Fluorescent material with purple luminescence property and preparation method thereof

A technology of fluorescent material and luminescence performance, applied in the field of violet fluorescent material and its preparation, can solve problems such as poor chemical stability, and achieve the effect of good violet fluorescent performance and thermal stability performance

Inactive Publication Date: 2014-12-10
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical stability of these compounds is poor, especially after comprehensively considering the luminous efficiency and temperature quenching characteristics, there are not many practical materials

Method used

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  • Fluorescent material with purple luminescence property and preparation method thereof
  • Fluorescent material with purple luminescence property and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add barbituric acid (0.2mmol, 0.026g) and zinc acetate (0.1mmol, 0.043g) to a 50mL beaker, add 4ml of deionized water, heat to dissolve and cool, place in a 10ml test tube, drop by drop with a dropper Add 3ml of ethanol to the test tube, then seal the test tube mouth with parafilm, pierce a few small holes on the parafilm, and get colorless strip crystals after the solution evaporates for two weeks.

Embodiment 2

[0021] Add barbituric acid (0.3mmol, 0.039g) and zinc acetate (0.2mmol, 0.086g) to a 50mL beaker, add 5ml of deionized water, heat to dissolve and cool, place in a 10ml test tube, drop by drop with a dropper Add 3ml of ethanol to the test tube, then seal the test tube mouth with parafilm, pierce a few small holes on the parafilm, and get colorless strip crystals after the solution evaporates for two weeks.

Embodiment 3

[0023] Add barbituric acid (0.4mmol, 0.052g) and zinc acetate (0.3mmol, 0.129g) to a 50mL beaker, add 6ml of deionized water, heat to dissolve and cool, place in a 10ml test tube, drop by drop with a dropper Add 3ml of ethanol to the test tube, then seal the test tube mouth with parafilm, pierce a few small holes on the parafilm, and get colorless strip crystals after the solution evaporates for two weeks.

[0024] The obtained colorless block crystals are rinsed with distilled water and air-dried naturally; after determination, the molecular formula of this zinc barbiturate compound is C 8 h 10 Zn 4 o 8 , the crystal system is orthorhombic, the space group is Iba2, and the unit cell parameters α=90°, γ=90°, β=90°. Its crystal structure unit is figure 1 shown.

[0025] The prepared zinc barbiturate compound C 8 h 10 Zn 4 o 8 Fluorescence performance test was carried out, and the compound showed good purple light emission performance (such as figure 2 ).

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Abstract

The invention discloses a fluorescent material with purple luminescence property and a preparation method thereof. The fluorescent material is characterized in that barbituric acid with relatively strong complexing capability serving as an organic ligand and zinc as a transition metal are prepared into a super-molecular zinc barbiturate compound by a solution method, the super-molecular zinc barbiturate compound has the molecular formula represented by C8H10ZnN4O8, the crystal system is an orthorhombic system, the space group is Iba2, and the cell parameters are shown in the specification, wherein alpha is equal to 90 degrees, gamma is equal to 90 degrees and beta is equal to 90 degrees. The fluorescent material has the advantages of accurate spatial structure, precise molecular formula, good thermal stability property and purple luminescence property and the fluorescent material containing a heterocyclic ring and cyclocarbonyl can be bonded with a transition metal to form a firm crystal framework by virtue of coordination bonds.

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and in particular relates to a purple fluorescent material and a preparation method thereof. Background technique [0002] Fluorescence is produced due to electronic transitions that make atoms in an excited state change to a ground state or a lower excited state with the same spin multiplicity. Since the discovery of fluorescence by British scientist G.G. Stokes in 1852, fluorescent materials have gradually come into people's sight. The so-called fluorescent material usually means that after receiving external energy, it can absorb and store energy, and convert it into light energy in a dark place. Generally, it is calcined with metal (zinc, chromium) sulfide or rare earth oxide and trace active agent. [0003] Fluorescent materials can be classified into organic fluorescent materials and inorganic fluorescent materials. Organic fluorescent materials are divided into organic sma...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07F3/06
Inventor 周庄伟李星赵亚云赵秀华康晶燕
Owner NINGBO UNIV
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