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A kind of manganese coordination polymer and its preparation method and application

A coordination polymer, coordination technology, applied in chemical instruments and methods, luminescent materials, etc., can solve the problem of high cost

Active Publication Date: 2021-05-18
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a manganese coordination polymer and its preparation method and application, which solves the problem of high cost caused by the chip assembly used in the past to obtain white light and the need to use different phosphors in the ratio and color refactoring. absorption problem

Method used

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  • A kind of manganese coordination polymer and its preparation method and application
  • A kind of manganese coordination polymer and its preparation method and application
  • A kind of manganese coordination polymer and its preparation method and application

Examples

Experimental program
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Embodiment 1

[0037] A preparation method of manganese coordination polymer, comprising the following steps:

[0038] 1) Dissolve 0.1 mmol of trimesic acid in 15 mL of N,N-dimethylacetamide solution, and transfer the solution into a reaction kettle to prepare a mixed solution;

[0039] 2) Take 0.1 mmol of manganese acetate and add it to the mixed solution of step 1), and drop glycolic acid into the mixed solution, stir while dripping, and adjust the pH value to 6;

[0040] 3) Seal the reaction kettle, keep the temperature at 120°C for 72 hours, then slowly cool to room temperature, the filtrate is yellow and clear, filter and wash the precipitate with fresh DMA solvent, pick out the colorless flaky hexagonal crystals under the microscope, which is the manganese complex. bit polymer. The DMA solvent is N,N-dimethylacetamide.

Embodiment 2

[0042] A preparation method of manganese coordination polymer, comprising the following steps:

[0043]1) Dissolve 0.2 mmol of trimesic acid in 15 mL of N,N-dimethylacetamide solution, and transfer the solution into a reaction kettle to prepare a mixed solution;

[0044] 2) Add 0.2 mmol of manganese acetate into the mixed solution of step 1), and drop glycolic acid into the mixed solution, stir while dripping, and adjust the pH value to 6;

[0045] 3) Seal the reaction kettle, keep the temperature at 140°C for 72 hours, then slowly cool to room temperature, the filtrate is yellow and clear, filter and wash the precipitate with fresh DMA solvent, pick out the colorless flaky hexagonal crystals under the microscope, which is the manganese complex. bit polymer. The DMA solvent is N,N-dimethylacetamide.

[0046] Examples 1-2 use trimesic acid as a ligand and manganese acetate to obtain manganese coordination polymers by solvothermal method. The appearance is colorless and transp...

Embodiment 3

[0048] A preparation method of manganese coordination polymer, comprising the following steps:

[0049] 1) Dissolve 0.2 mmol of trimesic acid in 15 mL of N,N-dimethylformamide solution, and transfer the solution into a glass bottle to prepare a mixed solution;

[0050] 2) Add 0.2 mmol of manganese chloride to the mixed solution of step 1), and drop glycolic acid into the mixed solution, stir while dripping, and adjust the pH value to 7;

[0051] 3) Seal the reaction kettle, keep the temperature at 140°C for 48 hours, then slowly cool to room temperature, filter, and wash the precipitate with fresh DMF solvent, pick out the colorless hexagonal flaky crystals under the microscope, which is the manganese coordination polymer . DMF is N,N-dimethylformamide.

[0052] This example uses trimesic acid as a ligand and manganese chloride to obtain a manganese coordination polymer through a solvothermal method. The appearance is colorless and transparent flake hexagonal crystals, taste...

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Abstract

The invention discloses a manganese coordination polymer, its preparation method and application, and belongs to the technical field of complex preparation. The chemical formula of manganese coordination polymer is: {[(CH 3 ) 4 N + ][Mn Ⅲ mn Ⅱ 2 (btc) 2 (Hbtc)(H 2 O)]}n, its asymmetric unit contains three independent central manganese ions, and the coordination mode of manganese ions includes hexa-coordination and hepta-coordination; the manganese coordination polymer is monoclinic, and the space group is C2 , the unit cell parameter is β=102.818(2) O ; Z=4. The manganese coordination polymer prepared by the method of the invention has good white fluorescent properties and good thermal stability, and has important application value in the fields of color display, fluorescent marking and the like.

Description

technical field [0001] The invention belongs to the technical field of complex preparation, and in particular relates to a manganese coordination polymer and its preparation method and application. Background technique [0002] Fluorescent material is a material that converts external energy into light, and has become an important supporting material in the fields of lighting and display. The amount of information that humans obtain through vision accounts for 80% of the total, so fluorescent materials are one of the most important materials in advanced life. Fluorescent materials can emit light because the material can absorb photons to make electrons transition to an energy level. Since the outer electrons in the high-energy state are not stable enough, photons will be released when the electrons transition from a high-energy level to a low-energy level again. Molecules that can strongly fluoresce almost always through the π * → The deactivation process of π produces rad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C09K11/06
Inventor 殷政王策马养民史碧波马维敏李茜窈
Owner SHAANXI UNIV OF SCI & TECH
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