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Preparation method of organic metal zinc trapezoidal complex luminescent material

A luminescent material, organometallic technology, applied in the field of fluorescence emission, can solve the problem of high price of rare earth elements, achieve the effect of cheap raw materials, cheap synthesis cost, and narrow absorption band

Inactive Publication Date: 2017-05-10
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But rare earth elements are more expensive

Method used

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  • Preparation method of organic metal zinc trapezoidal complex luminescent material
  • Preparation method of organic metal zinc trapezoidal complex luminescent material
  • Preparation method of organic metal zinc trapezoidal complex luminescent material

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Embodiment 1

[0020] 1 mmol of Zn(NO 3 ) 2 ·6H 2 O, 1 mmol of 2-ethylcarboxyphenylphosphinic acid and 1 mmol of 1,10-phenanthroline were dissolved in 20 mL of deionized water, and 1 mol L -1 The sodium hydroxide solution adjusted the pH value to 5; the mixed solution was stirred for 1 h, placed in a reaction kettle and heated at 150 °C for 72 h; when cooled to room temperature, colorless crystals were precipitated, and the yield was 60%.

[0021] The composition analysis result is: C 21 h 27 N 2 o 9 PZn, theoretical value (%) Zn, 11.87; P, 5.66; C, 46.00; N, 5.11; H, 4.93. Measured value (%): Zn, 11.98; P, 5.73; C, 46.32; N, 5.36; , 5.26.

[0022] It can be seen from the accompanying drawings of the description that the fluorescence emission peak of the complex is at 383 nm, and the absorption band of the ultraviolet-visible spectrum of the complex is at 290-310 nm.

Embodiment 2

[0024] A preparation method of an organometallic zinc ladder complex luminescent material, the preparation steps comprising: adding 0.85 mmol of Zn(NO 3 ) 2 ·6H 2 O, 1 mmol of 2-ethylcarboxyphenylphosphinic acid and 1.15 mmol of 1,10-phenanthroline were dissolved in 20 mL of deionized water, and 1 mol L -1 The pH value was adjusted to 5 with sodium hydroxide solution; the mixed solution was stirred for 1 h, then placed in a reaction kettle and heated at 150 °C for 80 h; when cooled to room temperature, colorless crystals precipitated.

Embodiment 3

[0026] A preparation method of an organometallic zinc ladder complex luminescent material, the preparation steps comprising: adding 1.15 mmol of Zn(NO 3 ) 2 ·6H 2 O, 1 mmol of 2-ethylcarboxyphenylphosphinic acid and 0.85 mmol of 1,10-phenanthroline were dissolved in 20 mL of deionized water, and 1 mol L -1 The sodium hydroxide solution was used to adjust the pH value to 5; after the mixed solution was stirred for 1 h, it was placed in a reaction kettle and heated at 150 °C for 78 h; when cooled to room temperature, colorless crystals precipitated.

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Abstract

The invention relates to the field of fluorescence emission, in particular to a preparation method of an organic metal zinc trapezoidal complex luminescent material. The preparation method comprises the following steps: dissolving 0.85 to 1.15 mmol of Zn(NO3)2.6H2O, 0.85 to 1.15 mmol of 2-ethyl carboxyl phenylphosphinic acid and 0.85 to 1.15 mmol of 1,10-phenanthroline into 20 mL of deionized water, and dripping 1 mol.L<-1> sodium hydroxide solution under a condition of stirring to adjust the pH value to be 5; stirring a mixed solution for 1 hour, and then putting into a reaction kettle for heating at the temperature of 150 DEG C for 70 to 80 hours; cooling the mixed solution to room temperature, and observing that clear crystals are separated out. According to the preparation method, no rare earth elements are used in synthesis of the complex of the organic metal zinc trapezoidal complex luminescent material; a fluorescent complex material is prepared from zinc nitrate metal salt with low cost, so as to realize the luminous property of the complex; the synthesis method of the complex is simple and comprises less steps, and the used raw materials are low in cost.

Description

technical field [0001] The invention relates to the field of fluorescence emission, in particular to a preparation method of an organometallic zinc ladder complex luminescent material. Background technique [0002] Existing studies on the luminescent properties of complexes mainly focus on rare earth compounds. Because rare earth elements have good luminescent properties. The conjugated system of the complex and the empty orbital of rare earth elements are used to change the charge transfer of the complex, thereby changing the luminescent properties. The focus of the research is only on the luminescent properties of individual complexes. Its luminescent mechanism is mainly metal-ligand charge transfer. Most of the metal ions selected in the research are rare earth elements, and the research in this area is relatively common. There are many kinds of fluorescent materials, and the synthesis steps of conjugated organic compounds such as nitrogen-containing heterocycles and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/30C09K11/06
CPCC07F9/304C09K11/06C09K2211/188
Inventor 关磊
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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