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Anthryl-containing cadmium-organic supramolecular polymer, and preparation method and application thereof

A supramolecular polymer and organic technology, applied in chemical instruments and methods, analytical materials, material excitation analysis, etc., to achieve high thermal stability

Active Publication Date: 2020-02-11
CHONGQING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of new chemical materials, 9,10-bis(4-pyridyl)anthracene (abbreviated as pyan) is a typical electron-rich N-ligand, and there are few photosensitive MOSPs constructed by pyan, polycarboxylic acid and transition metal ions. to report

Method used

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  • Anthryl-containing cadmium-organic supramolecular polymer, and preparation method and application thereof
  • Anthryl-containing cadmium-organic supramolecular polymer, and preparation method and application thereof
  • Anthryl-containing cadmium-organic supramolecular polymer, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take the material according to the following specific mass or volume: H 3 btot (19.4mg, 0.04mmol), pyan (13.3mg, 0.04mmol), Cd(NO 3 ) 2 4H 2 O (30.8 mg, 0.1 mmol), CH 3 CN (1mL), H 2 O (9 mL), HNO 3 (30uL, 7mol / L, 0.21mmol). Put the above materials in a 25mL reaction kettle, stir for about 10min, heat up to 160°C, react for 3 days, and cool to room temperature naturally to obtain blocky crystal samples, which are filtered from the mother liquor, washed with distilled water, and naturally cooled in the air at room temperature dry.

[0033] To the crystal sample of the prepared cadmium-organic supramolecular polymer containing anthracenyl, adopt Shimadzu XRD-6100 type X-ray diffractometer to carry out powder diffraction test (see image 3 , abscissa-angle; ordinate-diffraction intensity), the peak of the test spectrum and the peak of the crystal structure fitting spectrum can be well matched (software Mercury), indicating that the structure of the obtained crystal ...

Embodiment 2

[0048] Take the material according to the following specific mass or volume: H 3 btot (19.4mg, 0.04mmol), pyan (13.3mg, 0.04mmol), Cd(NO 3 ) 2 4H 2 O (18.6 mg, 0.06 mmol), CH 3 CN (1mL), H 2 O (9 mL), HNO 3 (20uL, 7mol / L, 0.14mmol). The above materials were placed in a 25mL reactor, stirred for 30min, heated to 140°C, reacted for 4 days, cooled to room temperature naturally to obtain massive crystals, which were filtered out from the mother liquor, washed with distilled water, and dried naturally in air at room temperature.

[0049] Product powder X-ray diffraction characterization (see figure 2 ), the data obtained are similar to those in Example 1. It shows that the crystal structure prepared by Example 2 does not change, and the product has high purity.

[0050] This example was repeated several times, and the mass of the supramolecular polymer actually obtained remained at 15.1-18.2 mg, and the yield calculated based on the amount of pyan was 51.7%-62.3%.

Embodiment 3

[0052] Take the material according to the following specific mass or volume: H 3 btot (19.5mg, 0.04mmol), pyan (13.3mg, 0.04mmol), Cd(NO 3 ) 2 4H 2 O (30.8 mg, 0.1 mmol), CH 3 CN (1mL), H 2 O (9 mL), HNO 3 (50uL, 7mol / L, 0.35mmol). Put the above materials in a 25mL reaction kettle, stir for about 20min, heat up to 150°C, react for 5 days, cool to room temperature naturally to obtain blocky crystals, filter them out from the mother liquor, wash with distilled water, and dry naturally in the air at room temperature .

[0053] Product powder X-ray diffraction characterization (see figure 2 ), the data obtained are similar to those in Example 1. for illustration

[0054] The crystal structure obtained in Example 3 remained unchanged and the product was relatively pure.

[0055] This example was repeated several times, and the mass of the supramolecular polymer actually obtained remained at 17.6-19.4 mg, and the yield calculated based on the amount of pyan was 60.2%-66.4...

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Abstract

The invention provides an anthryl-containing cadmium-organic supramolecular polymer. The chemical general formula of the anthryl-containing cadmium-organic supramolecular polymer is [Cd(Hbtot)(pyan)<1.5>]<n>; the supramolecular polymer belongs to a triclinic system; the space group of the supramolecular polymer is P-1; and cell parameters are that a is equal to 10.1873(19) angstroms, b is equal to13.984(3) angstroms, c is equal to 18.446(4) angstroms and V is equal to 2523.3(9) angstroms<3>. In the chemical general formula, Hbtot<2-> is obtained by removing two protons from semi-rigid ternaryorganic carboxylic acid H<3>btot, and the structure of H<3>btot is as shown in a formula I which is described in the specification; and the structure of ligand pyan is shown as a formula II which isdescribed in the specification. Hbtot<2->, pyan and Cd<2+> construct two-dimensional metal-mixed ligand coordination polymerization layers; and the coordination polymerization layers are stacked through Pi...Pi interaction to form the three-dimensional metal-organic supramolecular polymer. The yield of the green fluorescent anthryl-containing cadmium-organic supramolecular polymer prepared by themethod provided by the invention reaches about 75%; and the supramolecular polymer can be used as a fluorescent probe for CO<3><2-> / EDTA<2-> / Pb<2+> / Cr<3+> in aqueous solutions in the fields of environment, chemical engineering and the like, and also has application prospects in the aspects of bio-labeling, optical device preparation, color blending and the like.

Description

technical field [0001] The invention belongs to the field of advanced luminescent materials and heavy metals, and specifically relates to a cadmium-organic supramolecular polymer containing anthracene groups, a preparation method and application thereof. Background technique [0002] Light-emitting devices made of inorganic materials (such as ZnS:Mn devices) have disadvantages such as poor stability and luminous efficiency; devices made of organic small molecule materials (such as TBSA fluorene blue-light small molecules) are easy to crystallize during the light-emitting process, resulting in the stability of the device. The performance is also poor; and the device prepared by the polymer luminescent material (such as polystyrene quinoline reported in 2001) overcomes this shortcoming, making it have good commercial application prospects. [0003] Since the metal-organic complex 8-hydroxyquinoline aluminum (AlQ) was used as a raw material for light-emitting devices in 1987, p...

Claims

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Application Information

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IPC IPC(8): C08G83/00C09K11/06G01N21/64
CPCC08G83/008C09K11/06C09K2211/188G01N21/643
Inventor 黄坤林夏刚陈新张如意吴越
Owner CHONGQING NORMAL UNIVERSITY
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