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Phthalimide zinc coordination polymer as well as preparation method and application thereof

A technology of phthalimide-based zinc and coordination polymers, which is applied in the field of synthesis of organic-inorganic hybrid color-changing materials, can solve the problems of energy band structure damage and limited fatigue resistance, and achieve the expansion of application range and preparation The method is simple and easy, and the effect of excellent color changing characteristics

Active Publication Date: 2021-06-11
山西师范大学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of forcibly taking away the electrons inside the material by means of the oxidation of oxygen in the air will destroy the energy band structure inside the material to a certain extent, thus directly limiting the color change-fading cycle of inorganic-organic hybrid materials. Anti-fatigue performance

Method used

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  • Phthalimide zinc coordination polymer as well as preparation method and application thereof
  • Phthalimide zinc coordination polymer as well as preparation method and application thereof
  • Phthalimide zinc coordination polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh 4-PMPMD (20mg, 0.05mmol) and place it in a beaker, add 5mL of DMF solution, heat and stir until clarification, add Zn(NO 3 ) 2 (28mg, 0.15mmol) and trimesic acid (21mg, 0.1mmol) were stirred for 10 minutes to obtain a colorless clear liquid. Store in the dark at room temperature for 2-3 days to obtain a colorless and transparent bulk crystal, which is washed with DMF, filtered and dried. Yield: 41.6% (based on 4-PMPMD).

Embodiment 2

[0042] Weigh 4-PMPMD (20mg, 0.05mmol) and place it in a beaker, add 5mL of DMF solution, heat and stir until clarification, add Zn(NO 3 ) 2 (57mg, 0.3mmol) and trimesic acid (21mg, 0.1mmol) were stirred for 10 minutes to obtain a colorless clear liquid. Store in the dark at room temperature for 2-3 days to obtain a colorless and transparent bulk crystal, which is washed with DMF, filtered and dried. Yield: 50.4% (based on 4-PMPMD).

Embodiment 3

[0044] Weigh 4-PMPMD (20mg, 0.05mmol) and place it in a beaker, add 5mL of DMF solution, heat and stir until clarification, add Zn(NO 3 ) 2 (95mg, 0.5mmol) and trimesic acid (32mg, 0.15mmol) were stirred for 10 minutes to obtain a colorless clear liquid. Store in the dark at room temperature for 2-3 days to obtain a colorless and transparent bulk crystal, which is washed with DMF, filtered and dried. Yield: 62.3% (based on 4-PMPMD).

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Abstract

The invention relates to synthesis of organic-inorganic hybrid color-changing materials, in particular to a phthalimide zinc coordination polymer as well as a preparation method and application thereof. The chemical formula of the compound is [Zn(4-PMPMD)(BTC)]n.xDMF, 4-PMPMD is N,N-bis(4-picolyl)-phthalimide, BTC is trimesic acid with carboxylic acid not ionized, and DMF is N,N-dimethylformamide. According to the invention, phthalimide with excellent electron deficiency is used as an electron acceptor and is hybridized with an oxygen-containing carboxylic acid electron donor through the coordination effect of metal zinc, so that the phthalimide zinc coordination polymer photochromic material with ultra-fast light reversibility and ultra-strong anti-fatigue performance is provided. The color-changing material based on the intermolecular ET mechanism provided by the invention can change color under ultraviolet irradiation and fade under visible light irradiation, and a crystalline material with super-strong anti-fatigue performance in a color-changing-fading cycle process is obtained, so that the application range of the color-changing material is greatly expanded.

Description

technical field [0001] The invention relates to the synthesis of organic-inorganic hybrid color-changing materials, in particular to a phthalimide-based zinc coordination polymer and its preparation method and application. Background technique [0002] Electron transfer (ET) inorganic-organic hybrid photochromic materials have shown important applications in the fields of sensing, protection, display, and switching due to their flexible and diverse compositions and structures and good visually detectable photochromic behavior. Actual or potential application value. The performance indicators of inorganic-organic hybrid photochromic materials are mainly reflected in three aspects: (1) photoresponse rate and color contrast in the process of discoloration; (2) reversibility in the process of fading; (3) discoloration-fading cycle fatigue resistance during the process. At present, by effectively modulating the electron-accepting ability of the acceptor, the electron-donating a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C09K9/02
CPCC08G83/008C09K9/02C09K2211/188Y02E10/549
Inventor 郝鹏飞付云龙
Owner 山西师范大学
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