Purple fluorescent material and preparation method thereof

A technology of fluorescent materials and cadmium compounds, which is applied in the field of purple fluorescent materials and its preparation, can solve the problems such as the rare transition metal coordination and luminescence, and achieve a unique photoelectric activity effect

Inactive Publication Date: 2014-10-29
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rare earth complexes such as Eu 3+ , Yb 2+ 、Sm 2+ and Ce 3+ Their luminescence is often observed due to the presence of f-d radiative transitions, especially for Tb 3+ and

Method used

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  • Purple fluorescent material and preparation method thereof
  • Purple fluorescent material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh Cd(OAc) 2 2H 2 O (0.021g, 0.1mmol), barbituric acid (0.026g, 0.2mmol), heated and dissolved with 4ml of deionized water and cooled, placed in a 10ml test tube, added 3ml of ethanol dropwise to the test tube with a dropper, and used The test tube mouth is sealed by the parafilm, and several small holes are pierced on the parafilm. After the solution volatilizes for two weeks, a light yellow block crystal is separated out, which is the compound of the cadmium barbiturate.

Embodiment 2

[0020] Weigh Cd(OAc) 2 2H 2 O (0.021g, 0.1mmol), barbituric acid (0.013g, 0.1mmol), heated and dissolved with 2ml of deionized water and cooled, placed in a 10ml test tube, added 3ml of ethanol dropwise to the test tube with a dropper, and used The test tube mouth is sealed by the parafilm, and several small holes are pierced on the parafilm. After the solution volatilizes for two weeks, a light yellow block crystal is separated out, which is the compound of the cadmium barbiturate.

Embodiment 3

[0022] Weigh Cd(OAc) 2 2H 2 O (0.021g, 0.1mmol), barbituric acid (0.039g, 0.3mmol), heated and dissolved with 6ml of deionized water and cooled, placed in a 10ml test tube, added 3ml of ethanol dropwise to the test tube with a dropper, and used The test tube mouth is sealed by the parafilm, and several small holes are pierced on the parafilm. After the solution volatilizes for two weeks, a light yellow block crystal is separated out, which is the compound of the cadmium barbiturate.

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PUM

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Abstract

The invention discloses a purple fluorescent material and a preparation method thereof. The preparation method comprises the following step: enabling barbituric acid which has -CONHCO- and COCH2CO- structures and deionized water to perform chemical reaction with cadmium ions which have optical activities so as to prepare a cadmium barbiturate compound with a certain spatial structure, wherein the molecular formula of the compound is C8H10N4O8Cd; the molecular weight is 402.59; a crystal system is orthorhombic; the space group is Ibam; lattice parameters are as follows: a is equal to 12.5498 angstroms, b is equal to 13.967 angstroms, c is equal to 6.9470 angstroms, alpha is equal to 90.00 degrees, beta is equal to 90.00 degrees, and gamma is equal to 90.00 degrees. The compound fluorescent material disclosed by the invention contains rich optical activities and uniquely coordinated and configured Cd (II) ions and nitrogen-containing heterocyclic rings, is beneficial to electron transition and energy transmission, has unique photoelectric activities, shows unique purple fluorescence emission performance, and can be applied as the fluorescent material.

Description

technical field [0001] The invention belongs to the field of material chemistry, and in particular relates to a purple fluorescent material and a preparation method thereof. Background technique [0002] Substances that emit light after being irradiated by ultraviolet rays, X-rays, and electron rays, and stop emitting light quickly after the irradiation stops are called fluorescent substances, and the emitted light is called fluorescence. As early as 1575, it was observed in sunlight that the yellow water solution of Philippine rosewood slices had a very lovely sky blue color. In 1852, when G.G. Stokes observed the quinine and chlorophyll solution with a spectrometer, he found that the wavelength of the light emitted by them was slightly longer than the wavelength of the incident light, so it was concluded that this phenomenon was due to the substance absorbing light energy and regenerating it. Light of different wavelengths is emitted, not due to the diffusion of light. S...

Claims

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Application Information

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IPC IPC(8): C07F3/08C09K11/06
Inventor 康晶燕李星赵亚云赵秀华
Owner NINGBO UNIV
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